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Question

If 216=2a3b, then find the value of a+b.

A
3
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B
4
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C
5
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D
6
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Solution

The correct option is C 6
216=2a3b ...(1)
And, 216=63 ...(2)
2a3b=63 ....From (1) and (2)
2a×3b=23×33
So, a=3,b=3
a+b=3+3=6

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