Discussion

Question:

A positive number was by mistake divided by 6 instead of being multiplied by 6. What is the % error on the basis of correct answer?

Explanation:

Let x be the unknown positive number. Then, correct answer = 6x

Wrong answer = x/6

Error = 6x – x/6 = 35x/6

With respect to correct answer, % error can be found as, $\frac{\frac{35 x}{6}}{6 x} \times 100$ = $\frac{35 x}{36 x} \times 100$ = 97%

Hence, option (b).

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