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Question

If 2x2x1=4 then xx is equals to

A
7
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B
3
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C
27
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D
None of these
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Solution

The correct option is C 27
2x2x1=4

2x2x21=4

2x(112)=2x1=4=22

x1=2

from this we get x=3

xx=33=27

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