Q:
An error of 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is
Answer & Explanation
Answer: A) 4.04%
Explanation: 100 cm is read as 102 cm
a = 100 x 100 sq.cm and b = 102 x 102 sq.cm
then, Increase in area = [ (102 x 102) - (100 x 100) ] sq.cm
percentage error == 4.04%
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