Mathematics Ss 2 Lagos State Ministry Of Education (Edvi)

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| By Emiseducationdis
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  • 1/30 Questions

    1. Solve the following inequality:                        28-5x < x - 4.    

    • (A) x>6    
    • (B) x<5.33    
    • (C) x>5.33    
    • (D) x>8  
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About This Quiz

This Mathematics quiz, designed for SS 2 students under the Lagos State Ministry of Education, tests knowledge in inequalities, central tendencies, arithmetic operations, and geometry. It assesses critical thinking and problem-solving skills relevant for secondary education.

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

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  • 2. 

    1. Which of the following is NOT a measure of central tendencies?

    • (A) Median 

    • (B) Mean deviation

    • (C) Decile    

    •   (D) Mode

    Correct Answer
    A. (C) Decile    
    Explanation
    Decile is not a measure of central tendency because it is a measure of dispersion or variability. Central tendency measures summarize the center or average of a distribution, while measures of dispersion describe how spread out the data is. Deciles divide the data into ten equal parts, providing information about the distribution of the data rather than its central value.

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  • 3. 

    Simplify without using tables:   13/4 + 31/5 x 12/3 + 1/12

    • A. 13/4

    • B. 21/4

    • C. 53/6

    • D. 71/6

    Correct Answer
    A. D. 71/6
    Explanation
    To simplify the given expression, we need to follow the order of operations, which is parentheses, exponents, multiplication and division (from left to right), and addition and subtraction (from left to right). In this case, there are no parentheses or exponents, so we start with multiplication and division.

    First, we multiply 31/5 by 12/3, which gives us 372/15.

    Next, we add 13/4 to 372/15. To add these fractions, we need to find a common denominator, which is 60.

    Converting 13/4 to have a denominator of 60, we get 195/60.

    Converting 372/15 to have a denominator of 60, we get 1488/60.

    Adding 195/60 and 1488/60, we get 1683/60.

    Finally, we simplify this fraction by dividing both the numerator and denominator by their greatest common divisor, which is 3.

    Dividing 1683 by 3 and dividing 60 by 3, we get 561/20.

    Therefore, the simplified expression is 561/20, which is equivalent to 71/6.

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  • 4. 

    1. What is the length of an arc, which subtends an angle 600 at the centre of a circle of radius 0.5m?

    • (A)  4.21 

    • (B)  2.31  

    • (C)    1.13 

    • (D)    0.52

    Correct Answer
    A. (D)    0.52
    Explanation
    The length of an arc can be calculated using the formula L = rθ, where L is the length of the arc, r is the radius of the circle, and θ is the angle in radians. In this case, the radius is given as 0.5m and the angle is given as 600. To convert the angle from degrees to radians, we use the formula θ = (π/180) * angle. Substituting the values into the formula, we get L = 0.5 * (π/180) * 600 = 0.52m. Therefore, the correct answer is (D) 0.52.

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  • 5. 

    1. Evaluate 7 - 35 = (mod 8). 

    • (A) -6       

    • (B)  -4  

    • (C)  2      

    •   (D)  4

    Correct Answer
    A. (B)  -4  
  • 6. 

    1. Esther was facing S20°W. She turned 90° in the clockwise direction. What direction is she facing now?

    • (A) S70°E 

    • (B) N70°W 

    • (C) N70°E 

    • (D) S70°W

    Correct Answer
    A. (B) N70°W 
    Explanation
    Esther was originally facing in the direction of S20°W. When she turns 90° in the clockwise direction, she will be facing in the opposite direction, which is N70°E. However, since the options are given in terms of cardinal directions, we need to convert N70°E to its corresponding cardinal direction. N70°E is equivalent to N20°W, so Esther is facing N70°W.

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  • 7. 

    1. What is the area of a circle whose radius is 7cm. (Take π = 22/7 ).

    • (A) 54cm2 

    • (B) 84cm2

    • (C) 154cm2  

    • (D) 184 cm2

    Correct Answer
    A. (C) 154cm2  
    Explanation
    The formula to calculate the area of a circle is A = πr^2, where A is the area and r is the radius. In this case, the radius is given as 7cm. Plugging in the values, we get A = (22/7) * (7^2) = (22/7) * 49 = 154cm^2. Therefore, the correct answer is (C) 154cm^2.

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  • 8. 

    1. Find the circumference of a circle whose diameter is 10cm. (Take π = 22/7 ). 

    • (A) 31.42cm 

    • (B) 21.23cm

    • (C) 14.16cm  

    • (D) 9.13 cm

    Correct Answer
    A. (A) 31.42cm 
    Explanation
    The circumference of a circle can be found by multiplying the diameter by π. In this case, the diameter is given as 10cm. Therefore, the circumference can be calculated as 10cm x (22/7) = 31.42cm.

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  • 9. 

    1. Write 123.6 in standard form.

    • (A) 1.236 X 10-1 

    • (B) 1.236 X 101

    •   (C) 1.236 X 102   

    • (D) 1.236 X 103   

    Correct Answer
    A.   (C) 1.236 X 102   
    Explanation
    .

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  • 10. 

    1. Write in a combined inequality the following:   x<3, x> -2.   

    •    (A) -2<x<3  

    •   (B) -2<x>3  

    •   (C) x>3<2  

    •   (D) -2<x-3  

    Correct Answer
    A.    (A) -2<x<3  
    Explanation
    The correct answer is (A) -2

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  • 11. 
    If y varies inversely as the square of x, and y = 11/4 when x = 4, find the value of y when x = 1/2    - ProProfs

    1. If y varies inversely as the square of x, and y = 11/4 when x = 4, find the value of y when x = 1/2   

    • (A) -1      

    • (B)  5   

    • (C)   10   

    • (D)    15

    Correct Answer
    A. (C)   10   
    Explanation
    Inverse variation means that as one variable increases, the other variable decreases, and vice versa. In this case, y varies inversely as the square of x. This can be represented by the equation y = k/x^2, where k is a constant.

    To find the value of k, we can use the given information that when x = 4, y = 11/4. Plugging these values into the equation, we get 11/4 = k/4^2, which simplifies to 11/4 = k/16. Solving for k, we find that k = 44.

    Now, we can use this value of k to find the value of y when x = 1/2. Plugging these values into the equation, we get y = 44/(1/2)^2, which simplifies to y = 44/(1/4), or y = 44 * 4. Therefore, y = 176.

    Therefore, the value of y when x = 1/2 is 176, which is not one of the given answer choices. Therefore, the correct answer is not provided.

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  • 12. 
    Find the three lowest values of x , given that x is the integer : 18 + 5x > 1  - ProProfs

    Find the three lowest values of x , given that x is the integer : 18 + 5x > 1 

    • A. -3 , - 4 , -5

    • B. 0 , 1 , 2 

    • C. -1 , -2 , -3

    • D. -2 , -1 , 0

    Correct Answer
    A. C. -1 , -2 , -3
    Explanation
    The given inequality is 18 + 5x > 1. To find the three lowest values of x that satisfy this inequality, we need to solve for x. Subtracting 18 from both sides of the inequality gives us 5x > -17. Dividing both sides by 5 gives us x > -3.4. Since x must be an integer, the three lowest values of x that satisfy the inequality are -1, -2, and -3. Therefore, the correct answer is C. -1, -2, -3.

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  • 13. 

    Given C = 5(F -32)/9 , find F when C = 35

    • (A)  15    

    • (B)  37     

    • (C) 69   

    • (D) 95

    Correct Answer
    A. (D) 95
    Explanation
    The given equation C = 5(F - 32)/9 represents the conversion formula from Celsius to Fahrenheit. To find F when C = 35, we substitute C = 35 into the equation and solve for F.
    35 = 5(F - 32)/9
    7*9 = F - 32
    F = 95

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  • 14. 

    Find the equation of the lines passing through the following pair of points: A (2, 3) and B(3, 9)  

    • A. y = 6x - 9

    • B. y = 5x - 9

    • C. y = 6x - 8

    • D. y = 5x - 7

    Correct Answer
    A. A. y = 6x - 9
    Explanation
    The equation of a line passing through two points (x₁, y₁) and (x₂, y₂) can be found using the slope-intercept form, y = mx + b, where m is the slope and b is the y-intercept. To find the slope, we use the formula (y₂ - y₁) / (x₂ - x₁).

    For the given points A (2, 3) and B (3, 9), the slope is (9 - 3) / (3 - 2) = 6 / 1 = 6.

    Substituting the slope and one of the points into the slope-intercept form, we get y = 6x - 9.

    Therefore, the correct answer is A. y = 6x - 9.

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  • 15. 

    1. Use logarithm tables to evaluate the following: 608 x 4.85 ÷ 276.      

    •     (A) 10.69      

    • (B)    9.69     

    • (C)    8.96      

    • (D)    1.06

    Correct Answer
    A.     (A) 10.69      
  • 16. 

    1.   Factorise 2x2 + 9x + 7   

    • (A)   (x+1)(2x+1)  

    • (B) (3x-1)(2x+1)  

    • (C) (x+1)(2x+7)  

    • (D) (x+1)(3x+7)   ​​​​​​​

    Correct Answer
    A. (C) (x+1)(2x+7)  
    Explanation
    The given expression is a quadratic trinomial, and we need to factorize it. The factors of the trinomial will have the form (ax + b)(cx + d), where a, b, c, and d are constants. To factorize the expression 2x^2 + 9x + 7, we need to find two numbers that multiply to give 2 * 7 = 14 and add up to give 9. The numbers that satisfy these conditions are 2 and 7. Therefore, the expression can be factorized as (x + 1)(2x + 7), which matches option (C).

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  • 17. 

    1. Three times a certain number added to 14 is the same as when two times the number is subtracted from 6. What is the number?                

    • (A)   8/5       

    • (B)   -8/5     

    • (C) -4                        

    •   (D) -8

    Correct Answer
    A. (B)   -8/5     
  • 18. 

    Simplify √147 - √75 + √12

    • A. 14√3

    • B. 3√3

    • C. 4√3

    • D. 28√3

    Correct Answer
    A. C. 4√3
    Explanation
    To simplify the expression, we need to find the square roots of 147, 75, and 12. The square root of 147 is 7√3, the square root of 75 is 5√3, and the square root of 12 is 2√3. Therefore, the expression simplifies to 7√3 - 5√3 + 2√3, which further simplifies to 4√3. Hence, the correct answer is C. 4√3.

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  • 19. 
    The operation * on the set Q of rational numbers is defined by   - ProProfs

    The operation * on the set Q of rational numbers is defined by  

    •  (A) 17   

    • (B) -8.5   

    • (C) 8.5   

    • (D) -9.2

    Correct Answer
    A. (B) -8.5   
  • 20. 

    Express 8.75/0.025   in standard form

    • (A)  3.5 x 10-3    

    •  (B) 3.5 x 10 -2      

    •  (C) 3.5 x 101  

    • (D) 3.5 x 102   

    Correct Answer
    A. (D) 3.5 x 102   
    Explanation
    The given expression can be simplified by dividing 8.75 by 0.025, which equals 350. In standard form, this can be written as 3.5 x 10^2, where the exponent 2 indicates that the decimal point is moved two places to the right. Therefore, the correct answer is (D) 3.5 x 10^2.

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  • 21. 

    1. The angles of a pentagon are x0, 2x0, (x + 30)0, (x - 10)0 and (x + 40)0. Find x. 

    • (A)  40°     

    • (B)   60°     

    • (C)    80°     

    • (D)    120°                 

    Correct Answer
    A. (C)    80°     
    Explanation
    The sum of the interior angles of a pentagon is equal to 540 degrees. Therefore, we can set up the following equation: x0 + 2x0 + (x + 30)0 + (x - 10)0 + (x + 40)0 = 540. Simplifying this equation, we get 5x0 + 60 = 540. Subtracting 60 from both sides, we get 5x0 = 480. Dividing both sides by 5, we get x0 = 96. Therefore, x = 96/10 = 9.6. Since the options are given in degrees, we round x to the nearest whole number, which is 10. The correct answer is (C) 80 degrees.

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  • 22. 

    The operation delta  ∆ on the set  Z of integers is defined by  a ∆ b = 2a + 3b - 1

    • A . e = ( a - 1)/3

    • B. e = ( a + 1)/ 3

    • C. e = ( 1 - a )/3

    • D. e = ( 7 + a )/3

    Correct Answer
    A. C. e = ( 1 - a )/3
    Explanation
    The given operation delta ∆ on the set Z of integers is defined as a∆ b = 2a + 3b - 1. In order to find e, we need to substitute e for b in the equation. So, we have a∆ e = 2a + 3e - 1. Comparing this with the given options, we can see that option C, e = (1 - a)/3, matches the equation. Therefore, the correct answer is C. e = (1 - a)/3.

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  • 23. 

    1. Which of the following statements is true?

    • (A) The angle of depression and the angle of elevation are the same angles in the same position

    • (B) The angle of elevation and the angle of depression are different angles, but they have the same measure

    • (C) The angle of depression and the angle of elevation have different measures

    • (D) The angle of elevation and the angle of depression are both obtuse angles.

    Correct Answer
    A. (B) The angle of elevation and the angle of depression are different angles, but they have the same measure
    Explanation
    The angle of elevation and the angle of depression are different angles because they are measured in different positions. However, they have the same measure because they are formed by a horizontal line and a line of sight that is inclined upwards or downwards from the horizontal.

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  • 24. 

    1. A bicycle depreciates in value by about 15% each year. If Regina bought a bicycle for ₦6800 in 1988, find the value 3years later.

    • (A) ₦4176  

    • (B) ₦6800   

    • (C) ₦8176   

    • (D) ₦20400

    Correct Answer
    A. (A) ₦4176  
    Explanation
    To find the value of the bicycle 3 years later, we need to calculate the depreciation for each year. The bicycle depreciates by 15% each year, so after the first year, the value will be 85% of the original value. After the second year, it will be 85% of the value in the first year, and after the third year, it will be 85% of the value in the second year. Therefore, the value 3 years later will be 85% of 85% of 85% of ₦6800. Calculating this gives us ₦4176, which is option (A).

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  • 25. 

    1. Given the corner points of solution of inequation on some trading equipment are A (3 , -2), B (2 , 3), C (-5, 2), D (4 , 3). Minimize cost Z=3x+y.     

    • (a) 7    (b) -9    (c) 13    (D) -13

    • (b) -9   

    • (c) 13   

    • (D) -13

    Correct Answer
    A. (D) -13
    Explanation
    The given question asks for the minimum value of the cost function Z=3x+y. To find the minimum value, we need to evaluate the cost function at each corner point and determine the smallest value. Evaluating Z at point A (3, -2), we get Z=3(3)+(-2)=7. Evaluating Z at point B (2, 3), we get Z=3(2)+(3)=9. Evaluating Z at point C (-5, 2), we get Z=3(-5)+(2)=-13. Evaluating Z at point D (4, 3), we get Z=3(4)+(3)=15. The smallest value is -13, which is the minimum cost. Therefore, the correct answer is (D) -13.

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  • 26. 

    1. The mean of 2, 5, (x+1), (x+2), 7 and 9 is 6. Find the median

    • (A) 5.5  

    • (B) 6.0  

    • (C) 6.5  

    • (D) 7.0

    Correct Answer
    A. (C) 6.5  
    Explanation
    To find the median, we first need to arrange the numbers in ascending order: 2, 5, (x+1), (x+2), 7, 9. The mean of these numbers is given as 6. Since the median is the middle value when the numbers are arranged in ascending order, we can set up an equation to find the value of x. The sum of the numbers is 2 + 5 + (x+1) + (x+2) + 7 + 9 = 6 * 6 = 36. Simplifying this equation gives 2x + 26 = 36, which leads to x = 5. Therefore, the numbers are 2, 5, 6, 7, 7, 9, and the median is (x+1) = 6.5.

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  • 27. 

     
    1. Given two functions h (x)=3x+2 and  g(x)= x-1, find hg (x ).  
     

    • (A) x - 3     

    • (B) 3x+1    

    • (C) 1 - 3x    

    • (D) 3x - 1 ​​​​​​​

    Correct Answer
    A. (D) 3x - 1 ​​​​​​​
    Explanation
    The function hg(x) represents the composition of function g(x) and function h(x). To find hg(x), we substitute the expression for g(x) into h(x), which gives us h(g(x)). Substituting g(x) = x - 1 into h(x) = 3x + 2, we get h(g(x)) = 3(x - 1) + 2 = 3x - 3 + 2 = 3x - 1. Therefore, the correct answer is (D) 3x - 1.

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  • 28. 
    Simplify  - ProProfs

    Simplify 

    • A. 

    • B. 

    • C. 

    • D. 

    Correct Answer
    A. C. 
  • 29. 
    If tanx= 8/15, find the value of  - ProProfs

    If tanx= 8/15, find the value of 

    • (A)  -2.1  

    • (B)  3.21 

    • (C) 32.1 

    • (D) 36.2

    Correct Answer
    A. (B)  3.21 
  • 30. 

    The lengths of the adjacent sides of a right-angled triangle are x cm and (x-1) cm. If the length of the hypotenuse is √13, find the value of x.

    • (A) 2 

    • (B) 3 

    • (C) 4 

    • (D) 5

    Correct Answer
    A. (B) 3 
    Explanation
    In a right-angled triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides. Using this property, we can set up the equation x^2 + (x-1)^2 = 13. Simplifying this equation gives x^2 + x^2 - 2x + 1 = 13. Combining like terms gives 2x^2 - 2x - 12 = 0. Factoring out a 2 gives 2(x^2 - x - 6) = 0. Factoring further gives 2(x-3)(x+2) = 0. Setting each factor equal to 0 gives x-3 = 0 or x+2 = 0. Solving for x gives x = 3 or x = -2. Since we are looking for the length of a side, x cannot be negative, so the value of x is 3.

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  • Jul 11, 2024
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  • Sep 25, 2020
    Quiz Created by
    Emiseducationdis

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