6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Find the next number in the number series?

6, 6, 9, 18, 45, ?

A) 87	B) 99.75
C) 115.5	D) 135

Answer & Explanation Answer: D) 135

Explanation:

The given number series is 6, 6, 9, 18, 45, ?

Here the series follows a pattern that,

6

6 x 1 = 6

6 x 1.5 = 9

9 x 2 = 18

18 x 2.5 = 45

45 x 3 = 135

Hence, the next number in the given number series is 135.

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8 72516

Q:

Find the odd man out?

3, 12, 39, 120, 364

A) 364	B) 120
C) 39	D) 3

Answer & Explanation Answer: A) 364

Explanation:

The given number series is 3, 12, 39, 120, 364

$3 3 + 3^{2} = 3 + 9 = 12 12 + 3^{3} = 12 + 27 = 39 39 + 3^{4} = 39 + 81 = 120 120 + 3^{5} = 120 + 243 = 363 (Not 364)$

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7 72461

Q:

Find the odd man out of the series?

128, 32, 14, 2.66, 0.88

A) 32	B) 14
C) 2.66	D) 0.88

Answer & Explanation Answer: B) 14

Explanation:

Here the given series is 128, 32, 14, 2.66, 0.88

128 / 4 = 32

32 / 3 = 10.666

10.666 / 4 = 2.666

2.666 / 3 = 0.888

Hence, the odd man in the given number series is 14.

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Q:

If $19 x^{2} = 100^{2} - 90^{2}$ , then find the value of x.

A) 10	B) 9
C) 11	D) 12

Answer & Explanation Answer: A) 10

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

1 72384

Q:

In the following question, select the odd word from the given alternatives.

A) Rhombus	B) Cylinder
C) Cone	D) Sphere

Answer & Explanation Answer: A) Rhombus

Explanation:

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Q:

Calculate the area (in sq.cm) of a circle whose diameter is 14 cm.

A) 154	B) 308
C) 224	D) 448

Answer & Explanation Answer: A) 154

Explanation:

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1 72006

Q:

What is the value of (√2/3 - cosec60)?

A) (√6-6)/3√3	B) (2-2√3)/√3
C) (1-√6)/√2	D) (4-√3)/2√3

Answer & Explanation Answer: A) (√6-6)/3√3

Explanation:

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0 71907

Q:

What is the value of (2 - tan60°) ?

A) -1/√3	B) (√3-4)/2√3
C) -1/2	D) 2-√3

Quantitative Aptitude - Arithmetic Ability Questions

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