6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

An accurate clock shows 7 o'clock in the morning. Through how may degrees will the hour hand rotate when the clock shows 3 o'clock in the afternoon?

A) 144º	B) 168º
C) 180º	D) 150º

Answer & Explanation Answer: C) 180º

Explanation:

Angle traced by the hour hand in 6 hours = $\frac{360^{o}}{12} \times 6$ = $180^{o}$ .

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Filed Under: Clocks
Exam Prep: CAT
Job Role: Bank Clerk

41 20466

Q:

Select the odd figure out of the given series.

A) 1	B) 5
C) 3	D) 4

Answer & Explanation Answer: B) 5

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 20451

Q:

Two numbers are 20% and 30% less than the third number . How much percent is the second number less than first?

Answer

Let the third number be 100.

Then, the first number = 100 - 20 = 80 and second number = 100 - 30 = 70.

Difference between the first and second number = 80-70 = 10

$\inline \therefore$ Required percentage = $\frac{10}{80} x 100$ % = 100/8 = 12.5%

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Subject: Percentage Exam Prep: Bank Exams

34 20434

Q:

In two triangles, the ratio of the areas is 4 : 3 and the ratio of their heights is 3 : 4. Find the ratio of their bases.

A) 13:9	B) 16:9
C) 15:9	D) 14:9

Answer & Explanation Answer: B) 16:9

Explanation:

Let the bases of the two triangles be x and y and their heights be 3h and 4h respectively.
Then, $\frac{\frac{1}{2} \times x \times 3 h}{\frac{1}{2} \times y \times 4 h} = \frac{4}{3} \Rightarrow \frac{x}{y} = \frac{4}{3} \times \frac{4}{3} = \frac{16}{9}$

Required ratio = 16 : 9.

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Filed Under: Area
Exam Prep: Bank Exams
Job Role: Bank PO

24 20403

Q:

The average value of property of Mittal, Ambani and Singhania is Rs.11111 crore. The property of Singhania is as less than the property of Mittal is greater than the average property of both the Singhania and Mittal. The value of property of Ambani is :

A) Rs.111 crore	B) Rs. 1111 crore
C) Rs. 11111 crore	D) can't be determined

Answer & Explanation Answer: C) Rs. 11111 crore

Explanation:

$\frac{M + A + S}{3} = 11111$

also $\frac{S + M}{2} = 11111$ ( $∵$ M - 11111 = 11111 - S)

=>A = 11111

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Filed Under: Average

13 20375

Q:

A student multiplied a number by 2/5 instead of 5/2. What is the percentage error in evaluation ?

A) 52%	B) 64%
C) 84%	D) 77%

Answer & Explanation Answer: C) 84%

Explanation:

Let the number be 'x'

Then, according to the given data,

$\frac{\frac{5}{2} x - \frac{2}{5} x}{\frac{5}{2} x} x 100$

= $\frac{21}{25} x 100$

= 84%

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Filed Under: Percentage
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

14 20370

Q:

Which of the following statement is correct about a triangle?

A) If the triangles are congruent then their area will be equal	B) If the areas of two similar triangles are equal then the triangle is congruent
C) Two congruent triangles are always similar to each other	D) All options are correct

Answer & Explanation Answer: D) All options are correct

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

0 20343

Q:

Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even?

A) 3/4	B) 3/8
C) 5/16	D) 2/7

Answer & Explanation Answer: A) 3/4

Explanation:

In a simultaneous throw of two dice, we have n(S) = (6 x 6) = 36.

Then, E= {(1, 2), (1, 4), (1, 6), (2, 1), (2, 2), (2, 3), (2, 4), (2, 5), (2, 6), (3, 2), (3,4),(3, 6), (4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (4, 6), (5, 2), (5, 4), (5, 6), (6, 1),6, 2), (6, 3), (6, 4), (6, 5), (6, 6)}

Quantitative Aptitude - Arithmetic Ability Questions

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