A. Different volumes of water are moved different distances.
Step-by-step explanation:
Integration is used to find work required to pump water out of a tank because different volumes of water are moved different distances and to sum it all we the tool required is integration. Moreover, work done is a path function or an inexact differential. It does depend upon the path followed by the process.
The original price was 100% and the sale was -25% 100% - 25% = 75% This means 75% = £33 75% = 3/4 If we divide the sale amount by 3 and them multiply by 4, we will get the original amount. £33 / 3 = £11 £11 x 4 = £44
