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Converting Fractional Numbers to Percentages

A positive nu...

Question

A positive number is by mistake divided by 5 instead of being multiplied by 5. Estimate the percentage error.

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Solution

Let the number = x
Actually it was divided by 5 = x/5
Instead after multiplying, = 5x
Difference = 5x -(x/5)
= 24x/25
Percentage error
= {(24x/25)} x 100 %
= 96%

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