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Question

Value of x for logx 100 - 2 logx 2 = 2 is


A

4

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B

-6

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C

-4

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D

5

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Solution

The correct option is D

5


logx 100 - 2 logx 2 = 2
logx 25 = 2
x2 = 25
x = 5 (as base is always positive)


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