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Question

Evaluate: 3216×(343).

A
21
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B
42
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C
21
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D
Not defined
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Solution

The correct option is B 42

On prime factorising, we get,

216=6×6×6–––––––– =63.

343=7×7×7–––––––– =73.

Then, 343 =(7)3.


Therefore, value of 3216×(343) is:

363×(7)3=6×(7)=42.

Therefore, option B is correct.


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