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PS - decimals


mba4me

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So you're left with 2^4/10^7

2^4/10^7 : In this fraction, denominator will only add zero digits in the final terminating decimal, which we are not supposed to count.

 

That leaves us with numerator 2^4 = 16. Therefore number of non-zero digits are just 2. (1 and 6)

 

Alternate => 2^4/10^7 = 16/10000000 = 0.0000016 => Non zero digits : 2

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