Logarithm - Arithmetic Aptitude Questions and Answers

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The logarithm of 0.0001 to the base 0.001 is equal to

4/3

5/3

7/3

2/3

Answer : Option A

Explanation :

Let Log_0.001 (0.0001) = x

We know that log_x y = a equals to x^a = y.

So, (0.001)^x= 0.0001
Or, = [1/10000]

Or, =

Therefore, compare both side, we get 3x = 4.

Hence, x = 4/3

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