6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

3 : 12 :: 5 : ?

A) 17	B) 30
C) 26	D) 32

Answer & Explanation Answer: B) 30

Explanation:

$3 3^{2} + 3 = 12 5 5^{2} + 5 = 30$

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Filed Under: Ratios and Proportions
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78 20146

Q:

Which number will fit in '?' place in the following series?

12, 23, 45, 89, ?

A) 175	B) 176
C) 177	D) 178

Answer & Explanation Answer: C) 177

Explanation:

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Filed Under: Numbers
Exam Prep: Bank Exams

9 20071

Q:

A man runs round a circular field of radius 50m at the speed of 12 km/hr. What is the time taken by the man to take twenty rounds of the field?

A) 220/7 min	B) 110/7 min
C) 90/7 min	D) 230/7 min

Answer & Explanation Answer: A) 220/7 min

Explanation:

speed = 12 km/h = $12 \times \frac{5}{18} = \frac{10}{3} m / s$

distance covered = $20 \times 2 \times \frac{22}{7} \times 50 = \frac{44000}{7} m$

time taken = distance /speed = $\frac{44000}{7} \times \frac{3}{10} s e c = \frac{4400 \times 3}{7} \times \frac{1}{60} m i n = \frac{220}{7} m i n$

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Filed Under: Area
Exam Prep: Bank Exams
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31 20039

Q:

Two trains are moving in opposite directions at 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. The time taken by the slower train to cross the faster train in seconds is ?

A) 42 sec	B) 44 sec
C) 46 sec	D) 48 sec

Answer & Explanation Answer: D) 48 sec

Explanation:

Relative speed = 60 + 90 = 150 km/hr.

= 150 x 5/18 = 125/3 m/sec.

Distance covered = 1.10 + 0.9 = 2 km = 2000 m.

Required time = 2000 x 3/125 = 48 sec.

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Filed Under: Problems on Trains
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9 20020

Q:

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

$264 \div \sqrt{576} + 11^{2} + 12 = ?^{2}$

A) 44	B) 12
C) 15	D) 14

Answer & Explanation Answer: B) 12

Explanation:
264 / 24 + 121 + 12 = (?)^2 11 + 121 + 12 = (?)^2 144 = (?)^2 (?) = 12

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

0 19972

Q:

The calendar for the year 1988 is same as which upcoming year ?

A) 2012	B) 2014
C) 2016	D) 2010

Answer & Explanation Answer: C) 2016

Explanation:

We already know that the calendar after a leap year repeats again after 28 years.

Here 1988 is a Leap year, then the same calendar will be in the year = 1988 + 28 = 2016.

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Filed Under: Calendar
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80 19971

Q:

If a=2b/3, b=2c/3, and c=2d/3, then find the ratio of b and d:

A) 8/9	B) 4/9
C) 4/3	D) 5/27

Answer & Explanation Answer: B) 4/9

Explanation:

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

3 19969

Q:

The no of revolutions a wheel of diameter 40cm makes in traveling a distance of 176m is

A) 240	B) 140
C) 40	D) 340

Answer & Explanation Answer: B) 140

Explanation:

distance covered in 1 revolution = $2 πr$ = 2 x (22/7) x 20 = 880/7 cm
required no of revolutions = 17600 x (7/880) = 140

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Filed Under: Area
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21 19966

Quantitative Aptitude - Arithmetic Ability Questions

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