A stick of length 1.75m was measured by a boy as 1.80m. Find the percentage error in his measurement
- 27/9%
-
26/7%
- 5%
- 277/9%
- 284/7%.
The correct answer is: B
Explanation
% error = \(\frac{error value}{true value}\) x 100%
% error = \(\frac{1.80 - 1.75}{1.75}\) x 100% = \(\frac{0.05}{1.75}\) x 100% = \(\frac{20}{7}\)% = 2\(\frac{6}{7}\)%