Quantitative Aptitude - Arithmetic Ability Questions

Q:

Average of all even numbers between 104 and 148 is __________.

A) 128 B) 130
C) 124 D) 126
 
Answer & Explanation Answer: D) 126

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Filed Under: Average
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Q:

If 310 × 272 = 92 × 3n then the value of n is

A) 10 B) 12
C) 15 D) 20
 
Answer & Explanation Answer: B) 12

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Filed Under: Simplification

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Q:

At what rate of compound interest per annum will a sum of Rs 50000 become Rs 73205 in 2 years?

A) 21 percent B) 19 percent
C) 17 percent D) 15 percent
 
Answer & Explanation Answer: A) 21 percent

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Filed Under: Compound Interest
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Q:

A sum of Rs. 2000 amounts to Rs. 4000 in two years at compound interest. In how many years does the same amount becomes Rs. 8000.

A) 2 B) 4
C) 6 D) 8
 
Answer & Explanation Answer: B) 4

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Filed Under: Compound Interest
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Q:

10% discount is offered on an item. By applying a promo code the customer wins 5% cash back. What is the effective discount?

A) 15.225 percent B) 14.5 percent
C) 15 percent D) 5.5 percent
 
Answer & Explanation Answer: B) 14.5 percent

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Filed Under: Percentage
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Q:

Two water-squash mixtures, the first having a water-to-squash ratio of 4 : 1 and the other having a ratio of 3 : 1, are blended in the ratio 1 : 2. What is the water : squash ratio in the blend?

A) 19:11 B) 23:7
C) 17:13 D) 4:3
 
Answer & Explanation Answer: B) 23:7

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Filed Under: Alligation or Mixture
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Q:

A vendor buys apples at the rate of 21 for Rs 7 and sells at the rate of 5 for Rs 2. What will be the result?

A) 20 percent loss B) 20 percent gain
C) 16.66 percent gain D) 16.6 percent loss
 
Answer & Explanation Answer: B) 20 percent gain

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Filed Under: Profit and Loss
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Q:

The third proportional of two numbers 9 and 24 is

A) 39 B) 48
C) 72 D) 64
 
Answer & Explanation Answer: D) 64

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Filed Under: Ratios and Proportions
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