6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

A train is running at a speed of 116 kms/hr. The distance covered by the train in meters in 18 secs is

A) 900m	B) 1160m
C) 508m	D) 580m

Answer & Explanation Answer: D) 580m

Explanation:

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Filed Under: Problems on Trains
Exam Prep: Bank Exams

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Q:

To dispose of the old stocks, a person sold a tea-set for Rs. 3420, which was 43% below the cost price. In order to make a profit of 10% the seller should have sold the set for Rs. ___ more.

A) Rs. 3180	B) Rs. 2580
C) Rs. 1812.60	D) Rs. 2664.42

Answer & Explanation Answer: A) Rs. 3180

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

What is the value of ( 1/3 - cot60°) ?

A) (2-√3)/2√3	B) (√2-1)/√2
C) (1-√3)/3	D) (√3-4)/2√3

Answer & Explanation Answer: C) (1-√3)/3

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Calculate the value of $\frac{(61681 x 61681 - 31681 x 31681)}{30000}$

A) 93352	B) 94362
C) 93362	D) 95362

Answer & Explanation Answer: C) 93362

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

A boat travels 24 km upstream in 6 h and 20 km downstream in 4 h. then, the speed of a boat in still water and the speed of current are respectively

A) 4.5 km/h and 3 km/h	B) 4.5 km/h and 0.5 km/h
C) 4 km/h and 2 km/h 5 km/h and 2 km/h	D) 5 km/h and 2 km/h

Answer & Explanation Answer: B) 4.5 km/h and 0.5 km/h

Explanation:

Distance travelled by boat in upstream=24km

Time taken = 6 h

Speed of the boat in upstream = 24/6 = 4 km/h

And distance travelled by boat in downstream = 20 km

Time taken = 4h Speed of the boat in downstream = 20/4 km/h = 5 km/h

Now, speed of the boat in still water = 1/2 [ speed of the boat in upstream + speed of the boat in downstream] =1/2 [4 + 5] = 1/2 × 9 = 4.5 km/h

And speed of the current = 1⁄2 [speed of the boat in downstream – speed of the boat in upstream] = 1/2 [5 – 4] = 1/2 × 1 = 0.5 km/h

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Filed Under: Boats and Streams
Exam Prep: Bank Exams

7 1635

Q:

P bought an article for Rs. 1600 and sold it at a profit of 10%. What would have been the increase in the profit percent if it was sold for Rs. 1840?

A) 5%	B) 10%
C) 12%	D) 15%

Answer & Explanation Answer: A) 5%

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

A merchant marks the price of his articles 20% above the cost price. If he allows 20% discount, then what is the profit or loss percentage?

A) 2% loss	B) 4% profit
C) 4% loss	D) No profit/loss

Answer & Explanation Answer: C) 4% loss

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

A solid cone of height 24 cm and radius of its base 8 cm is melted to form a solid cylinder of radius 6 cm and height 6 cm. In the whole process what
percent of material is wasted?

A) 48.5	B) 37.5
C) 57.8	D) 64

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