An error 5% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is	Answers:
A) 10.4 %
B) 10.25 %
C) 10.23 %
D) 10.26 %
E) 10.5 %

Rationale: "100 cm is read as 102 cm . a 1 = ( 100 x 100 ) cm 2 and a 2 ( 105 x 105 ) cm 2 . ( a 2 - a 1 ) = [ ( 105 ) 2 - ( 100 ) 2 ] = ( 105 + 100 ) x ( 105 - 100 ) = 1025 cm 2 . percentage error = 10.25 b"
Answer: B