While doing his physics practical, Idowu recorded a reading as 1.12cm instead of 1.21cm. Calculate his percentage error
-
A.
1.17% -
B.
6.38% -
C.
7.44% -
D.
8.035% -
E.
9.00%
Correct Answer: Option C
Explanation
%error = (frac{1.21 – 1.12}{1.21} times 100%)
= (frac{9}{121} times 100%)
= 7.44%