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Q:

Choose the number which is different from others in the group?

A) 64 B) 162
C) 27 D) 144
 
Answer & Explanation Answer: D) 144

Explanation:

Each of the numbers except 144, is a perfect cube.

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Q:

The sum of the ages of 5 children born at the intervals of 3 years each is 50 years. what is the age of the youngest child ?

A) 4 B) 8
C) 10 D) None
 
Answer & Explanation Answer: A) 4

Explanation:

Let x = the youngest child. Each of the other four children will then be x+3, x+6, x+9, x+12. 

 

We know that the sum of their ages is 50 .

 

so, x+(x+3)+(x+6)+(x+9)+(x+12) = 50

 

=>  x= 4

 

 The youngest child is 4 years old.

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Filed Under: Problems on Ages

Q:

Choose the number which is different from others in the group?

A) 380 B) 120
C) 290 D) 168
 
Answer & Explanation Answer: A) 380

Explanation:

Each of the numbers except 380, is either one less or one more than the square of a certain number

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Q:

Choose the number which is different from others in the group?

A) 183 B) 137
C) 121 D) 231
 
Answer & Explanation Answer: C) 121

Explanation:

121 is the only perfect square number in the group.

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Q:

Choose the pair in which the words are differently related?

A) Lizard : Pad B) Short : Long
C) Poor : Rich D) Light : Heavy
 
Answer & Explanation Answer: A) Lizard : Pad

Explanation:

In all other pairs, the two words are antonyms of each other

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Q:

Choose the pair in which the words are differently related?

A) Man : Garage B) Cow : Shed
C) Pig : Sty D) Horse : Stable
 
Answer & Explanation Answer: A) Man : Garage

Explanation:

In all other pairs, second is the place of stay of the first.

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Q:

The total age of A and B is 12 years more than the total age of B and C. C is how many years younger than A ?

A) 12 B) 13
C) 14 D) 15
 
Answer & Explanation Answer: A) 12

Explanation:

(A+B) - (B+C) = 12

 

A - C = 12.

 

C is younger than A by 12 years.

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Filed Under: Problems on Ages

Q:

The total age of A and B is 12 years more than the total age of B and C. C is how many years younger than A ?

A) 12 B) 13
C) 14 D) 15
 
Answer & Explanation Answer: A) 12

Explanation:

(A+B) - (B-C) = 12 <=> A - C = 12.

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Filed Under: Problems on Ages