6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Find the next number in the given series ?

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

A) 2	B) 0
C) 1	D) -1

Answer & Explanation Answer: D) -1

Explanation:

3, 7, 6, 5, 9, 3, 12, 1, 15, ... has two different series

1) 3, 6, 9, 12, 15.....

2) 7, 5, 3, 1, .....

-1 is the next number.

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Filed Under: Odd Man Out
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
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3 62758

Q:

Suppose 0 < θ < 90, then for every θ 4 sin2 θ + 1 is greater than or equal to ?

A) 2	B) 4 sin θ
C) 4 cos θ	D) 4 tan θ

Answer & Explanation Answer: B) 4 sin θ

Explanation:

We know that,

Arithmetic mean ≥ Geometric mean

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Filed Under: Simplification
Exam Prep: Bank Exams

6 62745

Q:

Solve the following :

(-8) [36 / {7 - (-2)}] / (-4){19 - (-3) x (-5)} = ?

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

Answer & Explanation Answer: D) 2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

2 62738

Q:

Find compound interest on Rs. 8000 at 15% per annum for 2 years 4 months, compounded annually

A) 2109	B) 3109
C) 4109	D) 6109

Answer & Explanation Answer: B) 3109

Explanation:

Time = 2 years 4 months = 2(4/12) years = 2(1/3) years.
Amount = Rs'. [8000 X (1+(15/100))^2 X (1+((1/3)*15)/100)]
=Rs. [8000 * (23/20) * (23/20) * (21/20)]
= Rs. 11109. .
:. C.I. = Rs. (11109 - 8000) = Rs. 3109.

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Filed Under: Compound Interest
Exam Prep: Bank Exams
Job Role: Bank PO

347 62643

Q:

The speed of a car increases by 2 kms after every one hour. If the distance travelling in the first one hour was 35 kms. what was the total distance travelled in 12 hours?

A) 456 kms	B) 482 kms
C) 552 kms	D) 556 kms

Answer & Explanation Answer: C) 552 kms

Explanation:

Total distance travelled in 12 hours =(35+37+39+.....upto 12 terms)
This is an A.P with first term, a=35, number of terms,
n= 12,d=2.
Required distance = 12/2[2 x 35+{12-1) x 2]
=6(70+23)
= 552 kms.

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Filed Under: Time and Distance

342 62607

Q:

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

69÷3×0.85+24.5-13.8=?

A) 31.75	B) 30.25
C) 28.95	D) 35.25

Answer & Explanation Answer: B) 30.25

Explanation:

= (69x85/3x100) + 10.7

= 30.25.

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , GATE

0 62593

Q:

In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?

A) 1/3	B) 3/5
C) 8/21	D) 7/21

Answer & Explanation Answer: A) 1/3

Explanation:

Total number of balls = (8 + 7 + 6) = 21.

Let E = event that the ball drawn is neither red nor green

= event that the ball drawn is blue.

n(E) = 7.

P(E) = n(E)/n(S) = 7/21 = 1/3.

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Filed Under: Probability

77 62563

Q:

Which value is closest to [5.168 x 4453 x 3.194 / 67.999 x 4224.017]

A) 0.2	B) 0.002
C) 2	D) 0.02

Quantitative Aptitude - Arithmetic Ability Questions

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