Question

A chemist weighed an object and found its mass to be 225 grams. The object’s actual mass is 250 grams. What was the chemist’s percent of error?

Answer 1

10% of error

Explanation:

1% of error is 2.5

225/2.5 = 90

that is 90% correct

so 100 - 90 = 10

10% incorrect