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Question

If log102=0.301 and log1011=1.041, then the number of digits in 88100 is

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Solution

Let N=88100
Then log10N=log10(88100)
=100log10(23×11)
=100(3log102+log1011)
=100(3×0.301+1.041)
=100×1.944
=194.4
Characteristic of log10N is 194.
Hence, the number of digits in 88100 is195.

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