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Question

If (53)5×(53)11=(53)8x, then x=?

A
12
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B
2
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C
2
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D
12
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Solution

The correct option is C 2
Given, (53)5×(53)11=(53)8+x
LHS = (5/3)5+11=(5/3)6
On aomparing powers of RHS and LHS as the bases are same, we get
8+x=6
x=2

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