Question

A surveyor measures a road as being 69.3km long, however there is a 1℅ error in this measurement .What is the true length of the road

Answer 1

69.993

Explanation:

Using the percentage error formula:

Percentage error = (true - measured value / true measurement ) * 100%

1% error in measurement

1% of 69.3

0.01 * 69.3 = 0.693

True measurement = error in measurement + measured value

True measurement = 0.693 + 69.3

Actual measurement = 69.993

Hence, actual measurement = 69.993.