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Question

If A=333333333, then A3= ___________.

A
243A
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B
81A
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C
27A
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D
729A
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Solution

The correct option is B 81A
111111111×111111111=333333333=A

A=111111111×111111111=333333333=3111111111

A2=333333333×333333333

=3111111111×3111111111

=9111111111×111111111

=27111111111

A3=A2.A
=27111111111×3111111111

=81111111111×111111111

=81A

The answer is option (B).


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