6
Q:

 If a2 = 12, then a4 =? 

 

A) 144 B) 72
C) 36 D) 24

Answer:   A) 144



Explanation:

Given a x a = 12

asked to find a x a x a x a =  (a x a) x (a x a)

a4 = a2 x a2 

= 12 x 12

= 144.

 

More :: Mathematical operations questions and answers.

Subject: Numbers
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How many numbers are there between 1 to 200 which are divisible by 3 but not by 7?

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How many numbers are there from 700 to 950 (including both) which are neither divisible by 3 nor by 7?

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How many numbers divisible by 125 can be written by using all the digits 2,3,8,7,5 exactly once?

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Q:

Which of the numbers given below is NOT rational?

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Q:

Which value among 53, 64,126,27612 is the largest?

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Q:

What least value which should be added to 1812 to make it divisible by 7, 11 and 14?

A) 12 B) 36
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Answer & Explanation Answer: B) 36

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