6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Two pipes, when working one at a time, can fill a cistern in 3 hhrs and 4 hrs, resp while a third pipe can drain the cistern empty in 8 hrs. All the three pipes were opened together when the cistern was 1/12 full. How long did it take for the cistern to be completely full?

A) 2 hrs	B) 1 hr 45 min
C) 2 hr 10 min	D) 2 hr 11 min

Answer & Explanation Answer: A) 2 hrs

Explanation:

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Filed Under: Pipes and Cistern
Exam Prep: Bank Exams

3 2406

Q:

A student multiplied a number by 6/13 instead of 13/6. What is the percentage error in the calculation?

A) 369.44 percent	B) 39.35 percent
C) 184.72 percent	D) 78.7 percent

Answer & Explanation Answer: D) 78.7 percent

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Filed Under: Percentage
Exam Prep: Bank Exams

3 2404

Q:

Which of the following is the largest?

A) 12/49	B) 7/30
C) 13/56	D) 11/46

Answer & Explanation Answer: A) 12/49

Explanation:

In the given options,

12/49 can be written as 1/(49/12) = 1/4.083

7/30 can be written as 1/(30/7) = 1/4.285

13/56 can be written as 1/(56/13) = 1/4.307

11/46 can be written as 1/(46/11) = 1/4.1818

Here in the above,

1/4.083 has the smallest denominator and so 12/49 is the largest number or fraction.

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

5 2403

Q:

Hema takes a total of 9 hours 55 min to walk a certain distance and then cycling back to the same place from where she had started. She could walk both ways in 12 hours 30 min. The time she will take to cycle both ways is :

A) 7 hrs 20 min	B) 7 hrs 15 min
C) 7 hrs 35 min	D) 7 hrs 40 min

Answer & Explanation Answer: A) 7 hrs 20 min

Explanation:

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Filed Under: Time and Distance
Exam Prep: Bank Exams

4 2403

Q:

A can finish a work in 18 days and B in 36 days. If they work on it together for 9 days, then what percent of work is left?

A) 33.3	B) 20
C) 75	D) 25

Answer & Explanation Answer: D) 25

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Filed Under: Time and Work
Exam Prep: Bank Exams

6 2399

Q:

What is the average of first 7 multiples of 7?

A) 7	B) 14
C) 28	D) 21

Answer & Explanation Answer: C) 28

Explanation:

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Filed Under: Average
Exam Prep: Bank Exams

6 2399

Q:

If $x + \frac{1}{x} = 5, then the value of \frac{6 x}{x^{2} + x + 1} is,$

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: A) 1

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

7 2399

Q:

In the given figure, ABCDEF is a regular hexagon of side 12 cm. P, Q and R are the mid points of the sides AB, CD and EF respectively. What is the area (in sq.cm) of triangle PQR?

A) 27√6	B) 81√3
C) 54√3	D) 54√6

Quantitative Aptitude - Arithmetic Ability Questions

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