In measuring the sides of a rectangle, one side is taken 5% in excess,
and the other 4% in deficit. Find the error percent in the area
calculated from these measurements.
Let x and y be the sides of the rectangle.
Then, Correct area = xy.
Calculated area = (105/100)*x * (96/100)*y = (504/500 )(xy)
Error In measurement = (504/500)xy- xy = (4/500)xy
Error % = [(4/500)xy *(1/xy) *100] % = (4/5) % = 0.8%.
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