6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Simple interest on a sum of Rs 1400 for 3 years and 4 months is Rs 700. What is the rate (in percentage) of interest per annum?

A) 17	B) 15
C) 18	D) 12

Answer & Explanation Answer: B) 15

Explanation:

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Filed Under: Simple Interest
Exam Prep: Bank Exams

3 2008

Q:

A thief is stopped by a policeman from a distance of 400 metres. When the policeman starts the chase, the thief also starts running. Assuming the speed of the thief as 5 km/h and that of policeman as 9 km/h, how far the thief would have run, before he is over -taken by the policeman?

A) 400 metres	B) 600 metres
C) 500 metres	D) 300 metres

Answer & Explanation Answer: C) 500 metres

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Filed Under: Time and Distance
Exam Prep: Bank Exams

0 2007

Q:

A man walks at a speed of 3 kmph. He doubles his speed after reaching exactly half way. He walks for 5 hours in all. What is the total distance travelled by him?

A) 19 km	B) 15 km
C) 12 km	D) 20 km

Answer & Explanation Answer: D) 20 km

Explanation:

Let total distance be 2D.

He walks half distance i.e, (2D/2) = 'D' distance with 3 kmph and

The next 'D' with 6 kmph.

Using formula,

Time = Distance/speed

(D/3) + (D/6) = 5

D =10 ,

Hence, Total distance 2D = 20 kms.

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Filed Under: Time and Distance
Exam Prep: Bank Exams

15 2007

Q:

Sum of lengths of all edges of a cube is 84 cm, find its volume?

A) 686 cubic cms	B) 343 cubic cms
C) 171.5 cubic cms	D) 514.5 cubic cms

Answer & Explanation Answer: B) 343 cubic cms

Explanation:

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

1 2007

Q:

Pranita got 30 marks more in Math than what she got in Science. Her Math marks are 60% of the sum of her Math and Science marks. What are her Science marks?

A) 90	B) 150
C) 120	D) 60

Answer & Explanation Answer: D) 60

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

3 2007

Q:

A tower stands on the top of a building which is 40 metres high. The angle of depression of a point situated on the ground from the top and bottom of the tower are found to be 60 and 45 deg respectively. What is the height (in metres) of tower?

A) 20√3	B) 30(√3 + 1)
C) 40(√3 – 1)	D) 50(√3 – 1)

Answer & Explanation Answer: C) 40(√3 – 1)

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 2007

Q:

If 2x + 3y – 5z = 18, 3x + 2y + z = 29 and x + y + 3z = 17, then what is the value of xy + yz + zx?

A) 32	B) 52
C) 64	D) 46

Answer & Explanation Answer: B) 52

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Filed Under: Simplification
Exam Prep: Bank Exams

1 2006

Q:

If $\frac{a^{2}}{b + c} = \frac{b^{2}}{C + a} = \frac{a^{2}}{a + b} = 1 t h e n \frac{1}{1 + a} + \frac{1}{1 + b} + \frac{1}{1 + c} i s$

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

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