Question

A positive number is divided by 6 by mistake, instead of being multiplied by 6.  What is the percentage error (approximately)?97.2283.2775.35 3.86

Solution

The correct option is A 97.22Let the number be x. When it was multiplied by 6, the number obtained would have been 6x. The number was divided by 6 instead. Thus the number obtained was x6 Hence, percentage error = 6x−x66x×100% =36x−x36x×100% =3536×100% =97.22%

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