6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Find the next number in te given series ?

5, 25, 61, 113, ...

A) 142	B) 181
C) 156	D) 179

Answer & Explanation Answer: B) 181

Explanation:

Here the series follow the rule that

$1^{2} + 2^{2} = 5$

$3^{2} + 4^{2} = 25$

$5^{2} + 6^{2} = 61$

$7^{2} + 8^{2} = 113$

SO NEXT IS, $9^{2} + 10^{2} = 181$

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14 121915

Q:

7 9 19 18 31 29

Find the odd number in the given Number Series?

A) 31	B) 29
C) 18	D) 19

Answer & Explanation Answer: B) 29

Explanation:

Here the given number series follows a pattern of two alternate series.

1. 7 19 31 ...(Difference of 12)

2. 9 18 27 ...(Difference of 9)

Here the odd number is 29 instead of 27

And the next number is 31 + 12 = 43 & 27 + 9 = 36

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13 121788

Q:

What will come in place of the question mark (?) in the following number series?

5, 7, ?, 25, 45, 75

A) 11	B) 13
C) 15	D) 19

Answer & Explanation Answer: B) 13

Explanation:

The series given follow the pattern

+2, +2+4, +2+4+6, +2+4+6+8, +2+4+6+8+10,...

Here ? = 7 + 2 + 4 = 13.

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10 121784

Q:

SM@A#N2B4O&3C5P+D2

Using the above sequence find the characters that do NOT belong the group?

AO+, MB5, N32, $2P

A) N32	B) AO+
C) $2P	D) MB5

Answer & Explanation Answer: C) $2P

Explanation:

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0 121761

Q:

1.123 + 11.23 + 112.3 = ?

A) 123.453	B) 124.653
C) 125.253	D) 123.953

Answer & Explanation Answer: B) 124.653

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

20 121630

Q:

What should come in place of question mark (?) in the following question?

52000 ÷ 40 ÷ 65 × 30 = ? - √400

A) 580	B) 620
C) 720	D) 780

Answer & Explanation Answer: B) 620

Explanation:

52000 ÷ 40 ÷ 65 × 30 = ? - √400

(52000 ÷ 40) ÷ 65 × 30 = ? - 20

(1300 ÷ 65) × 30 = ? - 20

20 × 30 = ? - 20

600 = ? - 20

? = 620

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1 120493

Q:

Salaries of Ravi and Sumit are in the ratio 2:3. If the salary of each is increased by Rs. 4000, the new ratio becomes 40:57. What is Sumit's salary?

A) 38000	B) 46800
C) 36700	D) 50000

Answer & Explanation Answer: A) 38000

Explanation:

Let the original salaries of Ravi and Sumit be Rs. 2x and Rs. 3x respectively.
Then,
(2x+4000) / (3x+4000) = 40 / 57
⇒ 57 × (2x + 4000) = 40 × (3x+4000)
⇒ 6x = 68,000
⇒ 3x = 34,000
Sumit's present salary = (3x + 4000) = Rs.(34000 + 4000) = Rs. 38,000

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Filed Under: Ratios and Proportions

441 118219

Q:

Find the odd one out?

6, 3, 3, 4.5, 10

A) 3	B) 4.5
C) 6	D) 10

Answer & Explanation Answer: D) 10

Explanation:

Here the given number series is 6, 3, 3, 4.5, 10

The odd one in the given series is 10

The pattern it follows is

6

6 x 0.5 = 3

3 x 1 = 3

3 x 1.5 = 4.5

4.5 x 2 = 9

Hence, the odd number is 10.

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7 117819

Quantitative Aptitude - Arithmetic Ability Questions

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