While doing his physics practical, Idowu recorded a reading as 1.12cm instead of 1.21cm. Calculate his percentage error
- 1.17%
- 6.38%
-
7.44%
- 8.035%
- 9.00%
The correct answer is: C
Explanation
%error = \(\frac{1.21 - 1.12}{1.21} \times 100%\)
= \(\frac{9}{121} \times 100%\)
= 7.44%