Quantitative Aptitude - Arithmetic Ability Questions

Q:

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

A) (11, 13, 15) B) (15, 17, 19)  
C) (21, 23, 25)   D) (25, 27 31)
 
Answer & Explanation Answer: D) (25, 27 31)

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Q:

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

 

A) (6, 19, 30)   B) (9, 29, 45)  
C) (11, 34, 55)   D) (13, 40, 65)
 
Answer & Explanation Answer: B) (9, 29, 45)  

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Q:

Which pair is not similar to the other three?

A) Bare : Dressed B) Baffled : Informed
C) Counterfeit : Fake D) Degrade : Exalt
 
Answer & Explanation Answer: C) Counterfeit : Fake

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Q:

By what least number should 1200 be multiplied so that it becomes a perfect square?

A) 2 B) 3
C) 4 D) 5
 
Answer & Explanation Answer: B) 3

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Filed Under: Numbers
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Q:

If 12x2 - ax + 7 = ax2 + 9x + 3 has only one (repeated) solution, then the positive integral solution of a is

 

A) 2 B) 4
C) 3 D) 5
 
Answer & Explanation Answer: C) 3

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Filed Under: Simplification
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Q:

Find the number which is NOT a prime number.

A) 89 B) 87
C) 79 D) 97
 
Answer & Explanation Answer: B) 87

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Q:

The product of two numbers is 20. One of them is 1.25. What is the other number?

A) 12 B) 14
C) 16 D) 15
 
Answer & Explanation Answer: C) 16

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Q:

A prime number

A) Is not a positive integer B) Has no divisor at all
C) Has 1 and only itself as divisors D) Has more than 2 divisors
 
Answer & Explanation Answer: C) Has 1 and only itself as divisors

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