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CBSE Class 10 Answered

instead of multiplying a number by 7 ,the number is divided by 7.what is the percentage error obtained?
Asked by Ashrene | 26 Oct, 2012, 01:20: PM
answered-by-expert Expert Answer 
let no be x.
let actual ans be 7x
new ans = x/7

error=7x-x/7 = 48x/7

percentage = (48x/7)/7x * 100 = 97.9%
Answered by | 26 Oct, 2012, 02:23: PM

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CBSE 10 - Maths
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