Quantitative Aptitude - Arithmetic Ability Questions

Q:

3 numbers whose average is 112, the first number is 1/6th the sum of other 2. What is the first number?

A) 45 B) 30
C) 15 D) 48
 
Answer & Explanation Answer: D) 48

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Q:

If x/y = 2/3, then what is the ratio of (3x + 2y) and (3x – y)?

A) 4 : 1 B) 3 : 1
C) 2 : 1 D) 4 : 3
 
Answer & Explanation Answer: A) 4 : 1

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Filed Under: Ratios and Proportions
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Q:

If three numbers are in the ratio 2 : 3 : 5 and the twice their sum is 100. Find the square of the largest of the three numbers.

A) 225 B) 625
C) 25 D) 100
 
Answer & Explanation Answer: B) 625

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Filed Under: Ratios and Proportions
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Q:

The length of the diagonal of a square is 10 cm. What is area of this square?

A) 50 sq cm B) 100 sq cm
C) 200 sq cm D) 25 sq cm
 
Answer & Explanation Answer: A) 50 sq cm

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Filed Under: Area
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Q:

The simplest form of 3565/1495 is

A) 31/13 B) 43/19
C) 23/13 D) 31/23
 
Answer & Explanation Answer: A) 31/13

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Filed Under: Simplification
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Q:

If 2x + 3y = 0 and 3x ­- 4y = 34, then x ­- y = ______

A) 10 B) -10
C) 2 D) -2
 
Answer & Explanation Answer: A) 10

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Q:

If a – b = 11 and ab = 24, then value of a2 + b2 is

A) 169 B) 37
C) 73 D) 48
 
Answer & Explanation Answer: A) 169

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Q:

The least number that must be subtracted from 1294 so that the remainder when divided by 9, 11, 13 will leave in each case the same remainder 6 is:

A) 2 B) 3
C) 1 D) 4
 
Answer & Explanation Answer: C) 1

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