Blocks of stone are cut to a nominal size of 60cm x 30cm x 15cm, where measurements are correct to the nearest centimeter. Find the range of values of the volumes of a block giving your answer in the form V± pV, where V is the nominal volume and p is the percentage.

Answer 1

each dimension is ±0.5cm
so, figure the min/max range and divide the error by the nominal volume

Answer 2

how do you find the error?

Answer 3

But I get 2 different percentages?