Mathematics Jss 2 Lagos State Ministry Of Education (Edvi)

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  • 1/70 Questions

    If two or more numbers are added together, it’s called ___ A. Difference       B. Sum C. Product            D. Division    

    • A. Difference      
    • B. Sum
    • C. Product           
    • D. Division    
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About This Quiz

This Mathematics quiz, designed for JSS 2 students in Lagos State under the EDVI curriculum, assesses basic arithmetic and algebraic skills. Students tackle problems involving decimal multiplication, number theory, percentage conversion, place value understanding, and scientific notation.

Mathematics Jss 2 Lagos State Ministry Of Education (Edvi) - Quiz

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  • 2. 

    How many lines of symmetry have a square?  

    • A. 3      

    • B. 4      

    • C. 5      

    • D. 6    

    Correct Answer
    A. B. 4      
    Explanation
    A square has 4 lines of symmetry. This is because a square has four equal sides and four equal angles, which allows it to be folded or rotated in four different ways to create symmetry. Each line of symmetry divides the square into two equal halves.

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  • 3. 

    The following are polygons EXCEPT ___

    • A. Circle     

    • B. quadrilateral

    • C. hexagon    

    • D. heptagon      

    Correct Answer
    A. A. Circle     
    Explanation
    Polygons are closed figures with straight sides, while a circle is a curved figure. Therefore, a circle is not considered a polygon.

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  • 4. 

    The probability of a student passing JSSCE Mathematics is 70/100. What is the probability that the student will fail?

    • A. 10/100     

    • B. 30/100

    • C. 50/100     

    • D. 70/100

    Correct Answer
    A. B. 30/100
    Explanation
    The probability of an event occurring is equal to 1 minus the probability of the event not occurring. In this case, the probability of a student passing is 70/100, so the probability of a student failing is 1 - 70/100 = 30/100. Therefore, the correct answer is B. 30/100.

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  • 5. 

    Round off 3.9695 to 2 decimal places

    • A. 3.98  

    • B. 3.97  

    • C. 3.96   

    • D. 3.95

    Correct Answer
    A. B. 3.97  
    Explanation
    To round off 3.9695 to 2 decimal places, we look at the third decimal place, which is 9. Since it is greater than or equal to 5, we round up the second decimal place, which is 6. Therefore, the correct answer is B. 3.97.

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  • 6. 

    What is the value of 962?

    • A. 6226     

    • B. 7226     

    • C. 9216     

    • D. 7216                                 

    Correct Answer
    A. C. 9216     
    Explanation
    The value of 962 is 9216.

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  • 7. 

    Convert  1/3 to decimal fraction and give your answer to 4 decimal places.

    • A. 0.3330     

    • B. 0.3333

    • C. 0.3334     

    • D. 0.4444          

    Correct Answer
    A. B. 0.3333
    Explanation
    The decimal representation of 1/3 is 0.3333.

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  • 8. 

    Express 18 as a product of its prime factors.

    • A. 3x3=32                      

    • B. 2x3x3=21x32

    • C. 2x2x3x3 = 22x32      

    • D. 2x2x3=22x31    ​​​​​​​

    Correct Answer
    A. B. 2x3x3=21x32
    Explanation
    The prime factors of 18 are 2 and 3. To express 18 as a product of its prime factors, we can write it as 2 x 3 x 3, which is equal to 2 x 9 or 21 x 32. Therefore, the correct answer is B. 2x3x3=21x32.

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  • 9. 

    Find the Simple Interest on ₦500.00 for 2 years at 4%.

    • A. ₦30.00

    • B. ₦40.00

    • C. ₦50.00

    • D. ₦60.00     

    Correct Answer
    A. B. ₦40.00
    Explanation
    The simple interest can be calculated using the formula: Simple Interest = Principal * Rate * Time. In this case, the principal is ₦500.00, the rate is 4%, and the time is 2 years. Plugging these values into the formula, we get: Simple Interest = ₦500.00 * 0.04 * 2 = ₦40.00. Therefore, the correct answer is B. ₦40.00.

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  • 10. 

    What is the correct name for one thousand billion?

    • A. One hundred     

    • B. One cillion

    • C. One gazillion      

    • D. One trillion

    Correct Answer
    A. D. One trillion
    Explanation
    The correct name for one thousand billion is one trillion. In the short scale numerical system, which is commonly used in the United States and most English-speaking countries, one trillion is equal to 1,000,000,000,000. It is formed by adding the prefix "tri-" meaning three, to the base unit "illion" which represents a large, indeterminate number.

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  • 11. 

    30% of N900

    • A. N270     

    • B. N27    

    • C. N90     

    •  D. 290    

    Correct Answer
    A. A. N270     
    Explanation
    30% of N900 is equal to N270. This can be calculated by multiplying 900 by 0.30, which gives us 270. Therefore, the correct answer is A. N270.

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  • 12. 

    Find the HCF of 36 and 60

    • A. 12      

    • B. 14      

    • C. 16      

    • D. 18  

    Correct Answer
    A. A. 12      
    Explanation
    The HCF (Highest Common Factor) is the largest number that divides both 36 and 60 without leaving a remainder. To find the HCF, we can list the factors of both numbers and find the largest common factor. The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36. The factors of 60 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60. The largest common factor is 12, so the HCF of 36 and 60 is 12.

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  • 13. 

    The LCM of 5ab2 and 3a2b is:

    • A. ab     

    • B. 3a/2b

    • C. 5a3b3     

    • D. 15a2b2              ​​​​​​​

    Correct Answer
    A. D. 15a2b2              ​​​​​​​
    Explanation
    The LCM (Least Common Multiple) of two numbers or expressions is the smallest multiple that is divisible by both numbers or expressions. In this case, the LCM of 5ab^2 and 3a^2b is 15a^2b^2 because it is the smallest multiple that is divisible by both 5ab^2 and 3a^2b. The factors of 5ab^2 are 5, a, b, and b, while the factors of 3a^2b are 3, a, a, and b. The LCM should include all the factors with their highest powers, resulting in 15a^2b^2.

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  • 14. 

    Solve the equation 2 ½ = 1/y

    • A. 1/5      

    • B. 3/5

    • C. 2/5      

    • D. 4/5                                     

    Correct Answer
    A. C. 2/5      
    Explanation
    The equation can be solved by cross-multiplying. Multiply both sides of the equation by y to get rid of the fraction. This gives us 2 1/2 * y = 1. Simplifying the left side of the equation, we have 5/2 * y = 1. To solve for y, divide both sides of the equation by 5/2. This gives us y = 1 / (5/2) which simplifies to y = 2/5. Therefore, the correct answer is C. 2/5.

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  • 15. 

    Express 20% as a decimal number.

    • A. 2.00    

    • B. 0.5    

    • C. 0.2    

    • D. 0.05

    Correct Answer
    A. C. 0.2    
    Explanation
    To express a percentage as a decimal, you divide the percentage by 100. In this case, 20 divided by 100 equals 0.2. Therefore, the correct answer is C. 0.2.

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  • 16. 

    Simplify ab (a – b)

    • A. a2b – ab2      

    • B. ab2 – ab

    • C. ab – a2b2      

    • D. a2b – ab      

    Correct Answer
    A. A. a2b – ab2      
    Explanation
    To simplify the expression ab (a - b), we can use the distributive property. Multiplying ab by a gives us a^2b, and multiplying ab by -b gives us -ab^2. Therefore, the simplified expression is a^2b - ab^2.

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  • 17. 

    Which of the following fractions is the smallest fraction :  3/4 , 5/6 , 1/2  , 12/15

    • A. 12/15 

    • B. 6/15  

    • C. 5/6   

    • D. ½

    Correct Answer
    A. D. ½
    Explanation
    The correct answer is D. 1/2. To determine the smallest fraction, we can compare the numerators and denominators of each fraction. The numerator of 1/2 is the smallest among all the given fractions, while the denominators are all equal to 2. Therefore, 1/2 is the smallest fraction.

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  • 18. 

    Solve 5m/6 = 3 1/3

    • A. 60       

    • B. 40     

    • C. 10     

    • D. 4    

    Correct Answer
    A. D. 4    
    Explanation
    To solve the equation 5m/6 = 3 1/3, we can convert the mixed fraction 3 1/3 to an improper fraction. 3 1/3 is equal to (3 * 3 + 1)/3 = 10/3. Now, we can rewrite the equation as 5m/6 = 10/3. To solve for m, we can cross multiply. 5m * 3 = 6 * 10. Simplifying this gives us 15m = 60. Dividing both sides by 15, we find that m = 4. Therefore, the correct answer is D. 4.

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  • 19. 

    If 13 is the mean of the following set of numbers: 12, 11, 14 and x, what is the value of x?  

    • A. 11     

    • B. 12     

    • C. 13     

    • D. 15      

    Correct Answer
    A. D. 15      
    Explanation
    The mean of a set of numbers is the sum of all the numbers divided by the total number of numbers. In this case, the mean is 13. To find the value of x, we need to determine what number, when added to the set, will result in a mean of 13. By adding up the given numbers (12 + 11 + 14 = 37) and subtracting this sum from the total sum needed for a mean of 13 multiplied by the total number of numbers (13 x 4 = 52), we find that x must be 15 (52 - 37 = 15). Therefore, the value of x is 15.

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  • 20. 

    Find the highest common factor of 325, 350, and 375

    • A. 13   

    • B. 15   

    • C. 21   

    • D. 25          

    Correct Answer
    A. D. 25          
    Explanation
    The highest common factor of 325, 350, and 375 is 25. This can be found by finding the prime factors of each number and identifying the common factors. 325 can be factored into 5 x 5 x 13, 350 can be factored into 2 x 5 x 5 x 7, and 375 can be factored into 3 x 5 x 5 x 5. The highest common factor is the product of the common prime factors, which in this case is 5 x 5 = 25.

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  • 21. 

    The product of 0.017 and 100 is ___

    • A. 0.00017     

    • B. 0.0017    

    • C. 0.017          

    • D. 1.7                     

    Correct Answer
    A. D. 1.7                     
    Explanation
    The product of 0.017 and 100 is 1.7.

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  • 22. 

    The value of 7—(—15) is

    • A. -8       

    •  B. 22

    • C. 8     

    • D. 105

    Correct Answer
    A.  B. 22
    Explanation
    The expression 7 - (-15) can be simplified by applying the rule of subtracting a negative number, which is the same as adding a positive number. So, 7 - (-15) becomes 7 + 15, which equals 22. Therefore, the value of 7 - (-15) is 22.

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  • 23. 

    Express 6561 in index form.

    • A. 93     

    • B. 94     

    • C. 95                     ​​​​​​​​​​​​​​

    • D. 96

    Correct Answer
    A. B. 94     
    Explanation
    In index form, a number is expressed as a base raised to a power. In this case, 6561 can be expressed as 9 raised to the power of 4. Therefore, the correct answer is B. 94.

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  • 24. 

    John thinks of a number. 18 is subtracted from the number, the result gives – 2. What is the number?

    • A.  14    

    • B. 16    

    • C. 18    

    • D. 20

    Correct Answer
    A. B. 16    
    Explanation
    If 18 is subtracted from the number and the result is -2, it means that the number must be 16. This is because when 18 is subtracted from 16, the result is -2.

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  • 25. 
    Find the unknown angle in the figure below      - ProProfs

    Find the unknown angle in the figure below     

    • A. 1320     

    • B. 720     

    • C. 680     

    • D. 480

    Correct Answer
    A. D. 480
  • 26. 
    Simplify - ProProfs

    Simplify

    •   A. 2x/3

    • B. x2/9    

    • C. x2/6    

    • D. x2/3

    Correct Answer
    A. B. x2/9    
    Explanation
    The expression "Simplify" can be interpreted as finding the simplest form of the given expression. In this case, the simplest form would involve reducing the expression as much as possible. Looking at the given options, option B. x^2/9 is the simplest form because it cannot be further reduced. The other options still have terms that can be simplified or reduced. Therefore, option B is the correct answer.

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  • 27. 

    Factorize 24pz – 8pr.

    • A. 8p (3z –r)      

    • B. 8p (z – 3r)

    • C. 8p (3z + r)     

    • D. (8p (4z – r)

    Correct Answer
    A. A. 8p (3z –r)      
    Explanation
    The given expression can be factorized by finding the greatest common factor (GCF) of the terms. In this case, the GCF of 24pz and 8pr is 8p. To factorize, we divide each term by the GCF and write the result inside the parentheses. So, the factorized form is 8p(3z - r).

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  • 28. 
    Evaluate  below , given that a = 2, b = -2, c = 1 - ProProfs

    Evaluate  below , given that a = 2, b = -2, c = 1

    • A. -2     

    • B. -1     

    • C. 0     

    • D. 2 

    Correct Answer
    A. D. 2 
  • 29. 

    Find the mean score of these scores: 2, 3, 0, 8, 7, 5, 9, 6    

    • A. 3.75      

    • B. 5.50   

    • C. 5.00   

    • D. 4.00

    Correct Answer
    A. C. 5.00   
    Explanation
    The mean score is calculated by adding up all the scores and then dividing the sum by the total number of scores. In this case, the sum of the scores is 2 + 3 + 0 + 8 + 7 + 5 + 9 + 6 = 40. Since there are 8 scores in total, the mean score is 40/8 = 5.00. Therefore, the correct answer is C. 5.00.

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  • 30. 

    These numbers are square numbers except

    • A. 324     

    • B. 224 

    • C. 196 

    • D. 169   

    Correct Answer
    A. B. 224 
    Explanation
    The numbers given are all square numbers, except for 224. A square number is a number that can be expressed as the product of an integer multiplied by itself. For example, 324 is a square number because it can be expressed as 18 multiplied by 18 (18^2 = 324). Similarly, 196 is a square number because it can be expressed as 14 multiplied by 14 (14^2 = 196). 169 is a square number because it can be expressed as 13 multiplied by 13 (13^2 = 169). However, 224 is not a square number because there is no integer that can be multiplied by itself to give 224.

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  • 31. 

    Express as a single number: 3.8 x 104 – 9.7 103

    • A. 28300     

    • B. 28700

    • C. 59700     

    • D . 49700

    Correct Answer
    A. A. 28300     
    Explanation
    The correct answer is A. 28300. To find the solution, we subtract 9.7 times 10 raised to the power of 3 from 3.8 times 10 raised to the power of 4. This can be simplified to 38,000 - 9,700, which equals 28,300.

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  • 32. 

    Factorize 81 + 18a + a2        

    • A. (a+9) (a-9)        

    • B. (a+9) (a+9)

    • C. (a+3) (a+27)      

    • D. (a+1)(a+81) 

    Correct Answer
    A. B. (a+9) (a+9)
    Explanation
    The given expression is a quadratic trinomial. To factorize it, we can look for two binomials that when multiplied together, give us the original expression. In this case, we can see that the expression can be written as (a+9)(a+9), which is equivalent to (a+9)^2. Therefore, the correct answer is B. (a+9) (a+9).

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  • 33. 

    If N9 600 was shared among three boys Ola, Tope and Jide in the ratio 3 : 4 : 5, respectively, what is Jide’s share?

    • A. N2, 400    

    • B. N4, 000        

    • C. N950        

    • D. N3, 200        

    Correct Answer
    A. B. N4, 000        
    Explanation
    Ola, Tope, and Jide's shares are in the ratio of 3:4:5 respectively. To find Jide's share, we need to calculate what fraction of the total amount N9,600 corresponds to Jide's share.

    The total ratio is 3+4+5 = 12. To find Jide's share, we divide his ratio (5) by the total ratio (12) and multiply it by the total amount (N9,600).

    Jide's share = (5/12) * N9,600 = N4,000.

    Therefore, Jide's share is N4,000.

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  • 34. 

    Simplify      -4 x -2 x -3                         -2 x 6

    • A. -1/2     

    • B. -2      

    • C. -3     

    • D. 2

    Correct Answer
    A. D. 2
    Explanation
    The expression -4 x -2 x -3 simplifies to -24. The expression -2 x 6 simplifies to -12. Therefore, the correct answer is D. 2, as -24 divided by -12 equals 2.

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  • 35. 

    The reciprocal of x2 is ___  

    • A. x-2      

    • B. x2-      

    • C. x2      

    • D. 1-x   ​​​​​​​

    Correct Answer
    A. A. x-2      
    Explanation
    The reciprocal of x^2 is represented by 1/x^2. To find the reciprocal, we simply invert the fraction. In this case, we invert x^2 to get 1/x^2. Therefore, the correct answer is A. x^-2, which represents the reciprocal of x^2.

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  • 36. 

    Number 1, 2, 3, 4, 5, 6 ___ are called

    • A. Recurring decimal      

    • B. Whole number      

    • C. Natural number      

    • D. Integers   

    Correct Answer
    A. B. Whole number      
    Explanation
    The given sequence of numbers 1, 2, 3, 4, 5, 6 represents a set of positive integers that start from 1 and increase by 1 each time. These numbers do not include any fractions or decimals. Therefore, the correct term to describe this sequence is "whole numbers".

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  • 37. 

    Express 0.000 000 000 347 in standard form.

    • A. 47 x 10-1

    • B. 3.47 x 10-9

    • C. 3.47 x 10-8

    • D. 3.47 x 10-10  ​​​​​​​

    Correct Answer
    A. D. 3.47 x 10-10  ​​​​​​​
    Explanation
    The given number, 0.000 000 000 347, can be written as 3.47 x 10-10 in standard form. This is because we move the decimal point 10 places to the left, resulting in a number less than 1. The exponent of -10 indicates that the decimal point has moved 10 places to the left. Therefore, option D is the correct answer.

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  • 38. 

    The number of pupils in a school is 875. If 350 are girls, what percentage of the pupils are boys?

    • A. 16%      

    • B. 60%     

    • C. 25%     

    • D. 45&                          

    Correct Answer
    A. B. 60%     
    Explanation
    If there are 875 pupils in total and 350 are girls, then the remaining number of pupils must be boys. To find the percentage of boys, we can subtract the number of girls from the total number of pupils and divide by the total number of pupils. (875 - 350) / 875 = 525 / 875 = 0.6. Multiplying by 100 to convert to a percentage, we get 60%. Therefore, the percentage of pupils who are boys is 60%.

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  • 39. 

    Find the reciprocal of 2.5 ___

    • A. 0.0004      

    • B. 0.004      

    • C. 0.04           

    • D. 0.4   

    Correct Answer
    A. D. 0.4   
    Explanation
    The reciprocal of a number is obtained by dividing 1 by that number. In this case, the reciprocal of 2.5 is 1/2.5, which is equal to 0.4.

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  • 40. 

    Find the product of the square root of 16 and the square of 9 is

    • A. 3240     

    • B. 1296     

    • C. 324    

    • D. 144             

    Correct Answer
    A. C. 324    
    Explanation
    The square root of 16 is 4, and the square of 9 is 81. Therefore, the product of the square root of 16 and the square of 9 is 4 * 81 = 324.

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  • 41. 

    Numbers that cannot be expressed as fractions are called ___

    • A. Recurring numbers

    • B. Decimal numbers

    • C. Irrational numbers

    • D. Rational numbers

    Correct Answer
    A. C. Irrational numbers
    Explanation
    Irrational numbers are numbers that cannot be expressed as fractions or ratios of integers. They are non-repeating and non-terminating decimals. Examples of irrational numbers include √2, π, and e. Recurring numbers refer to decimals that have a repeating pattern, while decimal numbers simply refer to any number expressed in decimal notation. Rational numbers, on the other hand, are numbers that can be expressed as fractions. Therefore, the correct answer is C. Irrational numbers.

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  • 42. 

    If 15 men dig a trench for 10 days, how many men  will be required to dig the trench in 2 days?                    

    • A. 150 men     

    • B. 75 men

    • C. 60 men       

    • D. 30 men 

    Correct Answer
    A. B. 75 men
    Explanation
    If 15 men can dig a trench in 10 days, it means that the total work required to dig the trench is equivalent to 15 men working for 10 days. Therefore, the total work done by these 15 men is 15 * 10 = 150 man-days.

    To find out how many men will be required to dig the trench in 2 days, we need to divide the total work required (150 man-days) by the number of days (2).

    Therefore, the number of men required is 150 man-days / 2 days = 75 men.

    Hence, the correct answer is B. 75 men.

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  • 43. 

    Round off 23 456 713 500 145 to 3 significant figures and write your answer in words  

    • A. Twenty – three trillion and five hundred million

    • B. Twenty – three trillion and four hundred million

    • C. Twenty – three trillion and five hundred billion

    • D. Twenty 0- three trillion and four hundred billion                                 

    Correct Answer
    A. C. Twenty – three trillion and five hundred billion
    Explanation
    When rounding off to 3 significant figures, we start counting from the leftmost non-zero digit. In this case, the leftmost non-zero digit is 2. The next two digits after 2 are 3 and 4, which are less than 5. Therefore, we do not round up the 2. The remaining digits after the third significant figure are ignored. Therefore, the rounded off number is 23 trillion and 500 billion.

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  • 44. 

    Complete the following sentence correctly. Vertically opposite angles ___

    • A. are equal

    • B. add up to 1800

    • C. are corresponding

    • D. are alternate                                

    Correct Answer
    A. A. are equal
    Explanation
    Vertically opposite angles are equal. This means that when two lines intersect, the angles opposite each other (across the intersection) have the same measure. This property is a result of the vertical angles theorem, which states that vertical angles are congruent. Therefore, option A is the correct answer.

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  • 45. 

    If a = 2, put ( >, <, ,  or =) in the box for the inequality below: -23  -45

    • A. >      

    • B.  >   

    • C. <     

    • D. =              

    Correct Answer
    A. A. >      
    Explanation
    Since a = 2, we can substitute 2 into the inequality: -23 > -45. This is true because -23 is greater than -45. Therefore, the correct answer is A. >.

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  • 46. 

    Find the probability of choosing a vowel from ‘KETU – LAGOS’.  

    • A. 1/9

    • B. 2/9

    • C. 1/2 

    • D. 4/9

    Correct Answer
    A. D. 4/9
    Explanation
    In the given question, we need to find the probability of choosing a vowel from the word "KETU - LAGOS". The word contains a total of 9 letters. Out of these 9 letters, there are 4 vowels (E, U, A, O). Therefore, the probability of choosing a vowel is 4/9.

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  • 47. 

    Express 675 000 000 in a standard form  

    • A. 6.75 x 108      

    • B. 6.75 x 107

    • C. 6.75 x 106      

    • D. 6.75 x 105     ​​​​​​​

    Correct Answer
    A. A. 6.75 x 108      
    Explanation
    The standard form of a number is written as a number between 1 and 10 multiplied by a power of 10. In this case, to express 675,000,000 in standard form, we can write it as 6.75 x 10^8. This is because we can move the decimal point 8 places to the right to get 675,000,000. Therefore, the correct answer is A. 6.75 x 10^8.

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  • 48. 

    Express 0.0001 in standard form.

    • A. 1 x 104     

    • B. 1 x 103

    • C. 1 x 10-3    

    • D. 1 x 10-4                     â€‹â€‹â€‹â€‹â€‹â€‹â€‹

    Correct Answer
    A. D. 1 x 10-4                     â€‹â€‹â€‹â€‹â€‹â€‹â€‹
    Explanation
    The standard form of a number is written as a decimal multiplied by a power of 10. In this case, the number 0.0001 can be expressed as 1 x 10-4, where 10 is raised to the power of -4. This means that the decimal point is moved 4 places to the left, resulting in a smaller number. Therefore, the correct answer is D. 1 x 10-4.

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  • 49. 

    Evaluate 2p – (p – 2p)

    • A. 0     

    • B. p     

    • C. 3p     

    • D. 2p     

    Correct Answer
    A. C. 3p     
    Explanation
    To evaluate the expression 2p - (p - 2p), we can simplify it step by step.

    First, we simplify the expression inside the parentheses: (p - 2p) = -p.

    Next, we substitute this simplified expression back into the original expression: 2p - (-p) = 2p + p = 3p.

    Therefore, the correct answer is C. 3p.

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  • Dec 17, 2024
    Quiz Edited by
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  • Sep 24, 2020
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    Emiseducationdis
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