Question
A girl found the answer for the question âsubtract the
sum 1/4 and 1/8 from unity and express the answer in decimalsâ as 1.5. The percentage of error in her answer was?Solution
Correct answer = 1 - (1/4+1/8) = 1 - ((2+1)/8)Â Â â 1Â - 3/8 = 5/8Â = 0.625 Difference in answer = 1.5 - 0.625 = 0.875 Required percentage = 0.875/0.625 Ă 100 = 140 %
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