Quant Mock (Number Series, Simplifications, Quadratic Equations)

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| Attempts: 120 | Questions: 15
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1. 3, 9, 17, 27, 39, 53, ?

Explanation

The pattern is +6, +8, +10, ....
So answer is 53 + 16 = 69

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About This Quiz
Quant Mock (Number Series, Simplifications, Quadratic Equations) - Quiz

This 'Quant Mock' quiz assesses skills in solving quadratic equations, simplifications, and number series. Participants solve algebraic equations and determine relationships between variables, enhancing their problem-solving and analytical... see moreabilities in a mathematical context. see less

2. 5042, 5187, 5334, 5483, 5634, ?

Explanation

The pattern is +145, +147, +151, .....

So the answer is 5634 + 153 = 5787

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3. What approximate value should come in place of the question mark (?) in the following questions? (You are not expected to calculate the exact value.)25.675% of 1321 + 64.328% of 4001 =

Explanation

The approximate value that should come in place of the question mark is 2912. This can be determined by calculating 25.675% of 1321, which is approximately 339.05, and 64.328% of 4001, which is approximately 2572.95. Adding these two values together gives approximately 2911, which is closest to the given answer of 2912.

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4. In these questions, two equations are given. You have to solve both the equations and mark the appropriate answer.x2 + 11x+ 30 = 0y2 + 7y + 12 = 0

Explanation

To find the relationship between x and y, we need to solve both equations.

For the first equation, we can factorize it as (x + 5)(x + 6) = 0. This gives us two possible values for x: x = -5 or x = -6.

For the second equation, we can factorize it as (y + 3)(y + 4) = 0. This gives us two possible values for y: y = -3 or y = -4.

Comparing the possible values of x and y, we can see that for both cases (x = -5 or x = -6), y is always greater than x. Therefore, the correct answer is x

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5. 8, 17, 38, 85, 186, ?

Explanation

The pattern is *2 + 1 square, *2 + 2 square, *2 + 3 square, ....
So the answer is 186 * 2 + 5 square = 372 + 25 = 397

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6. Directions: What should come in place of the question mark (?) in the following questions?36865+12473+21045-44102 = ?

Explanation

The correct answer is 26281. This can be obtained by adding the first three numbers and then subtracting the fourth number. 36865 + 12473 + 21045 - 44102 = 26281.

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7. Directions: What should come in place of the question mark (?) in the following questions?√1.5625= ?

Explanation

The square root of 1.5625 is 1.25. This can be determined by finding the number that, when multiplied by itself, equals 1.5625. In this case, 1.25 multiplied by itself equals 1.5625. Therefore, the correct answer is 1.25.

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8. Directions: What should come in place of the question mark (?) in the following questions?3 * ? + 30 = 0

Explanation

Correct answer is -10

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9. In these questions, two equations are given. You have to solve both the equations and mark the appropriate answer. 9x- 15.45 = 54.55 +4x√(y + 155) - √36 = √49  

Explanation

By solving the first equation, we can simplify it to 5x = 109. By solving the second equation, we can simplify it to √(y + 155) = 7. Since the first equation gives a unique value for x and the second equation gives a unique value for y, we can conclude that x and y are equal, i.e., x = y. Therefore, the relationship between x and y can be determined as x = y.

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10. Directions: What should come in place of the question mark (?) in the following questions? (103.7 m 101.3 )2 = 10? 

Explanation

Correct answer is 10

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11. In the following number series only one number is wrong. Find out the wrong number.2, 4 , 11 , 37 , 151 , 771 , 4633

Explanation

The sequence in the series is:
2 x 1 + 2 = 4
4 x 2 + 3 = 11
11 x 3 + 4 = 37
37 x 4 + 5 = 153 ≠ 151
153 x 5 + 6 = 771
771 x 6 + 7 = 4633

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12. In these questions, two equations are given. You have to solve both the equations and mark the appropriate answer. 5x2 - 18x +9 = 020y2 - 13y + 2 = 0

Explanation

The given equations are quadratic equations. By solving both equations, we can determine the values of x and y. Since the answer is x > y, it means that the value of x is greater than the value of y.

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13. In the following number series only one number is wrong. Find out the wrong number.9 , 5 , 6 , 10.5 , 23 , 61, 183

Explanation

The sequence in the series is:
9 x 0.5 + 0.5 = 5
5 x 1 + 1 = 6
6 x 1.5 + 1.5 = 10.5
10.5 x 2 + 2 = 23
23 x 2.5 + 2.5 = 60 ≠ 61
60 x 3 + 3 = 183

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14. In these questions, two equations are given. You have to solve both the equations and mark the appropriate answer. 225x2 -4 = 0√225y +2=0  

Explanation

The given equations are 225x^2 - 4 = 0 and √225y + 2 = 0.
To solve the first equation, we can rewrite it as 15x^2 - 2 = 0 by taking the square root of 225 and simplifying. Solving this quadratic equation, we find that x = ±√(2/15).
To solve the second equation, we can rewrite it as √(225y) = -2 and then square both sides to eliminate the square root. This gives us 225y = 4, and solving for y, we find that y = 4/225.
Comparing the values of x and y, we can see that x ≥ y. Therefore, the correct answer is x ≥ y.

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15. In these questions, two equations are given. You have to solve both the equations and mark the appropriate answer. x3 - 878 = 453y2 - 82 = 39

Explanation

The given equations are x^3 - 878 = 453y^2 - 82 = 39. By solving the equations, we can find the values of x and y. However, the relationship between x and y cannot be determined based on the given equations. Therefore, the answer is x = y or the relationship between x and y cannot be determined.

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3, 9, 17, 27, 39, 53, ?
5042, 5187, 5334, 5483, 5634, ?
What approximate value should come in place of the question mark (?)...
In these questions, two equations are given. You have to solve both...
8, 17, 38, 85, 186, ?
Directions: What should come in place of the question mark (?) in...
Directions: What should come in place of the question mark (?) in...
Directions: What should come in place of the question mark (?) in...
In these questions, two equations are given. You have to solve both...
Directions: What should come in place of the question mark (?) in...
In the following number series only one number is wrong. Find out the...
In these questions, two equations are given. You have to solve both...
In the following number series only one number is wrong. Find out the...
In these questions, two equations are given. You have to solve both...
In these questions, two equations are given. You have to solve both...
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