6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

ax + 5y = 8 has slope of -4/3. What is the value of a?

A) 20/3	B) 3/20
C) -20/3	D) -3/20

Answer & Explanation Answer: A) 20/3

Explanation:

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Q:

If Cot θ = 21/20, then what is the value of Sec θ?

A) 29/21	B) 21/29
C) 29/20	D) 20/29

Answer & Explanation Answer: A) 29/21

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Q:

What is the value of ${(- 7776)}^{\frac{2}{5}}$

A) 16	B) 36
C) 64	D) 21

Answer & Explanation Answer: B) 36

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Q:

If $x^{3} = 6^{2} - 3^{2}$ , then the value of x is

A) 9	B) 6
C) 3	D) 1

Answer & Explanation Answer: C) 3

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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
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Q:

A shopkeeper by selling 5 items, earns a profit equal to the selling price of 1 item. What is his profit percentage?

A) 20%	B) 25%
C) 16%	D) 22.5%

Answer & Explanation Answer: B) 25%

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Q:

If a person has sold an article for Rs. 1300 and made a profit of 30%, find the cost price of the article.

A) Rs. 1000	B) Rs. 1200
C) Rs. 1250	D) Rs. 1100

Answer & Explanation Answer: A) Rs. 1000

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Q:

Rita buys 5 sarees at an average cost of Rs 2250. If she buys three more sarees at an average cost of Rs 2750, what will be the average (in Rs) of all the sarees she buys?

A) 2437.5	B) 2500
C) 2450	D) 2332.5

Quantitative Aptitude - Arithmetic Ability Questions

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