6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Find the wrong number in the given number series?

10, 21, 54, 109, 189

A) 189	B) 109
C) 54	D) 21

Answer & Explanation Answer: A) 189

Explanation:

The given number series is 10, 21, 54, 109, 189

The series follows a pattern that

10 + 11 = 21

21 + 33 = 54

54 + 55 = 109

109 + 77 = 186

Hence the wrong number in the given number series is 189.

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Filed Under: Odd Man Out
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

5 102945

Q:

Choose the figure which is different from the rest three.

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: A) 1

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 101991

Q:

If ${(\frac{5}{7})}^{4 x} . {(\frac{7}{5})}^{3 x - 1} = {(\frac{7}{5})}^{6}$ , then find the value of x which satisfies the equation.

A) -1	B) -7
C) 1	D) 7

Answer & Explanation Answer: B) -7

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 101981

Q:

A, B and C enter into a partnership and their shares are in the ratio 1/2 : 1/3 : 1/4. After 2 months, A withdraws half of his capital and after 10 months, a profit of Rs. 378 is divided among them. What is B's share ?

A) 144	B) 169
C) 225	D) 339

Answer & Explanation Answer: A) 144

Explanation:

Ratio of initial investments = 1/2 : 1/3 : 1/4 = 6 : 4 : 3.

Let their initial investments be 6x, 2x and 3x respectively.

A : B : C = (6x * 2 + 3x * 10) : (4x * 12) : (3x * 12) = 42 : 48 : 36 = 7 : 8 : 6.

B's share = Rs. (378 * 8/21) = Rs. 144.

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Filed Under: Partnership

148 101803

Q:

Insert the missing number.

3, 7, 6, 5, 9, 3, 12, 1, 15, (....)

A) 18	B) 13
C) -1	D) 3

Answer & Explanation Answer: C) -1

Explanation:

There are two series, beginning respectively with 3 and 7. In one 3 is added and in another 2 is subtracted.

The next number is 1 - 2 = -1.

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73 101752

Q:

56% of 225 + 20% of 150 = ? - 109

Find the value of '?' in the above equation

A) 264	B) 220
C) 241	D) None

Answer & Explanation Answer: A) 264

Explanation:

Given 56% of 225 + 20% of 150 = ? - 109

we know that a% of b = b% of a

Now,

225% of 56 + 20% of 150 = ? - 109

200% of 56 + 25% of 56 + 20% of 150 = ? - 109

112 + 14 + 30 = ? - 109

? = 112 + 14 + 30 + 109

? = 264

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Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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28 101593

Q:

In the following question, select the odd letter/letters from the given alternatives.

A) GMS	B) KQW
C) JPV	D) NTY

Answer & Explanation Answer: D) NTY

Explanation:

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Exam Prep: Bank Exams

7 101583

Q:

Find the y-intercept of the line joining two points (1, 3) and (3, 5).

A) -2	B) 0
C) 2	D) 4

Quantitative Aptitude - Arithmetic Ability Questions

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