A student found the approximate value of 0.02548 correct to two places of decimal instead of two significant figures. Find the percentage error.
- A.
0% - B.
131/3% - C.
15 5/13% - D.
2/3% - E.
20%
Correct Answer: Option E
Explanation
0.02548 (approxeq) 0.03 (to 2 decimal places)
0.02548 (approxeq) 0.025 (2 sig. figs)
Error = 0.03 – 0.025
= 0.005
% error = (frac{0.005}{0.025} times 100%)
= 20%