In measuring the sides of a rectangle, one side is taken 7% in excess, and the other 6% in deficit. Find the error percent in the area calculated from these measurements.	Choose the correct choice from the following:	A) 0.11 %	B) 0.7 %	C) 0.4 %	D) 0.6 %	E) 0.58 %

Rationale: "let x and y be the sides of the rectangle . then , correct area = xy . calculated area = ( 61 / 57 ) x ( 47 / 50 ) y = ( 867 / 862 ) ( xy ) error in measurement = ( 867 / 862 ) xy - xy = ( 5 / 862 ) xy error percentage = [ ( 5 / 862 ) xy ( 1 / xy ) 100 ] % = ( 29 / 50 ) % = 0.58 % . answer is e ."
Answer: E