A number 4.625 is wrongly entered as 4.265. Find the percentage error.
11.11%
6.66%
7.78%
9%
Difference in the two numbers = 4.625 - 4.265 = 0.36
Percentage error = 0.364.625×100 = 7.78%
A time interval of 3 minutes and 20 seconds is wrongly measured as 3 minutes and 25 seconds. What is the percentage error?