A student found the approximate value of 0.02548 correct to two places of decimal instead of two significant figures. Find the percentage error.
- 0%
- 131/3%
- 15 5/13%
- 2/3%
-
20%
The correct answer is: 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%