Two neighbours have identical water butts in their gardens to water their plants. One neighbour decides to water his plants by filling up a watering can several times. The other neighbour attaches a simple pump and hose to his water butt so that he can water his plants in one go. Both water butts are full to start with and the depth of water against time for both neighbours is shown on the two graphs X and Y below.

a. (i) Which graph shows the neighbour using the watering can?
(ii) Justify your answer.
b (i) Which graph shows water left in the water butt after having watered the plants?
(ii) Justify your answer.

Transcribed Image Text:

Depth X Time Depth Y Time