If instead of multiplying a number by 7 the number was divided by 7. What should be the percentage error?

228 viewsGeneral Aptitude

If instead of multiplying a number by 7 the number was divided by 7. What should be the percentage error?

(a) 100%
(b) 96.8%
(c) 92.70%
(d) 97.9%
(e) None of these

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% = (d)

( d ) 97.9%

Add a Comment
0
Write your answer.