6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If Sinx = 4/5, then $1 + {Tan}^{2} x =$

A) 9/25	B) 25/16
C) 4/25	D) 25/9

Answer & Explanation Answer: D) 25/9

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

1 56312

Q:

If $y = 1^{3} + 2^{3} + 3^{3} + 4^{3} + 5^{3} + 6^{3}$ then find the value of y - 1.

A) 429	B) 439
C) 440	D) 441

Answer & Explanation Answer: C) 440

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Filed Under: Simplification
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0 56279

Q:

Find the factors of $(x^{2} + x - 42)$

A) (x + 14)(x - 3)	B) (x + 6)(x - 7)
C) (x - 6)(x + 7)	D) (x - 14)(x + 3)

Answer & Explanation Answer: C) (x - 6)(x + 7)

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams

0 56231

Q:

The two equations x - 4y = 0 and 4x + 3y = 19 have a solution (a, b). Find the value of $\frac{ab}{a + 4 b}$ .

A) 1/4	B) 1/2
C) 1	D) 23

Answer & Explanation Answer: B) 1/2

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Filed Under: Simplification
Exam Prep: Bank Exams

2 56179

Q:

Find the odd man out?

16, 254, 1296, 4096, 10000

A) 16	B) 254
C) 1296	D) 10000

Answer & Explanation Answer: B) 254

Explanation:

The given series 16, 254, 1296, 4096, 10000 follows a pattern that

$2^{4}, 4^{4}, 6^{4}, 8^{4}, 10^{4}, . . .$

Hence, the odd man in the series is 4 x 4 x 4 x 4 = 256 not 254.

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Filed Under: Odd Man Out
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3 56069

Q:

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

$\frac{5^{2} x 14 + 1450}{18} = 1998 \div ?$

A) 18.25	B) 19.98
C) 34.58	D) 65.25

Answer & Explanation Answer: B) 19.98

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: GATE , Bank Exams

0 56025

Q:

The ratio of two numbers is 3 : 4 and their H.C.F is 4. Their L.C.M is

A) 12	B) 16
C) 24	D) 48

Answer & Explanation Answer: D) 48

Explanation:

Let the numbers be 3x and 4x . Then their H.C.F = x. So, x=4

Therefore, The numbers are 12 and 16

L.C.M of 12 and 16 = 48

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Filed Under: HCF and LCM

127 55893

Q:

If x = 0.139, then what is the value of $\sqrt{4 x^{2} + 4 x + 1}$ ?

A) 1.39	B) 1.278
C) 2.139	D) 1.69

Quantitative Aptitude - Arithmetic Ability Questions

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