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Question

If 32x2a=3 has a remainder 1 when divided by x2, then what will be the value of a?

A
4
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B
3
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C
2
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D
1
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Solution

The correct option is A 4
Replace x as 2 in the expression:
32x2a=3

3222a=3

32×4a=3

6a=3
=3a
So, the remainder is 3a, Now substitute the value of remainder, we know it is 1.
3a=1
3+1=a
a=4

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