Question

actual length of a rope is 22.5 but it is wrongly measured as 21.6 M find the percentage error

Answer 1

percentage error = | actual reading - wrong reading | / acttual reading * 100%

here in this question,

percentage error= | 21.6 - 22.5 | / 22.5 * 100%

= 4%

So there is a 4% error.

Answer 2

Answer:

Actual length=22.5m

Wrong measurement=21.6m

Difference in measurement=22.5-21.6=0.9

%error=0.9/22.5*100

=4%

Step-by-step explanation: