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

3 Answers on this Question

1. 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)

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2. ( d ) 97.9%

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3. % error= (new no-actual no)/actual no *100
   % error= [(x/7)-7x]/7x * 100
   % error= 48x/49x * 100
   % error= 0.9795*100=97.95

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