Quantitative Aptitude - Arithmetic Ability Questions

Q:

Product of digits of a 2-digit number is 24. If we add 45 to the number, the new number obtained is a number formed by interchange of the digits.What is the original number?

A) 54 B) 83
C) 38 D) 45
 
Answer & Explanation Answer: C) 38

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Q:

Select the odd word/letters/number/number pair from the given alternatives.

A) 132 B) 145
C) 187 D) 144
 
Answer & Explanation Answer: D) 144

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Q:

If  2x+14x = 1, then the value of  x2+164x2 is

A) 0 B) 1
C) 1/4 D) 2
 
Answer & Explanation Answer: A) 0

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Q:

If Girish's salary is 4/9 times of Harishankar's and Shirish's salary is 5/6 times of Harishankar's, what is the ratio of Girish's salary to Shirish's.

A) 27:10 B) 10:27
C) 8:15 D) 15:8
 
Answer & Explanation Answer: C) 8:15

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Filed Under: Ratios and Proportions
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Q:

What are the roots of the quadratic equation: x2 + 3x ­- 154 = 0

A) 11, 14 B) 11, ­-14
C) 14, -­11 D) 14, -­22
 
Answer & Explanation Answer: B) 11, ­-14

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Q:

If a2+1a2 = 38, then find the value of a-1a?

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

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Q:

What is the sum of the first 12 terms of an arithmetic progression if the first term is 3 and last term is 47?

A) 260 B) 300
C) 280 D) 220
 
Answer & Explanation Answer: B) 300

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Q:

What is the value of cot 11π/6?

A) -√3 B) -1
C) √3 D) -1/2
 
Answer & Explanation Answer: A) -√3

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