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:  Choose the correct option:
A) 10.01 B) 9.25 C) 10.25 D) 8.25 E) 6.25
Explanation:   100 cm is read as 105 cm.   A1 =(100 × 100)cm2 = 10000   and A2= (105 × 105)cm2= 10816   (A2 - A1) = 11025-10000= 
<gadget id="calculator">11025-10000</gadget>
<output>1_025</output>
1025=&gt; 1025/10000*100= 
<gadget id="calculator">1025/10000*100</gadget>
<output>41/4 = around 10.25</output>
10.25   Answer : 10.25
<result>C</result>
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: