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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The least number which when divides 37044, gives the result a perfect cube, is:

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The 3rd and 6th term of an arithmetic progression are 13 and -5 respectively. What is the 11th term?

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If the Arithmetic mean of 7, 5, 13, x and 9 is 10, then the value of x is

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What least number must be subtracted from 3401, so that the sum is completely divisible by 11?

A) 3 B) 1
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The 7th and 12th term of an arithmetic progression are -15 and 5 respectively. What is the 16th term?

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Answer & Explanation Answer: C) 21

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The 2nd and 8th term of an arithmetic progression are 17 and -1 respectively. What is the 14th term?

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Select the correct option:

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A) 1101001 B) 1100111
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The average of 29 consecutive even integers is 60. The highest of these integers is

A) 88 B) 118
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Answer & Explanation Answer: A) 88

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