Question

A water tank holds 125 l of water. If 97 l 500 ml of the water is used, how much water remains in the tank?

Answer 1

1 litre = 1000 ml

l	ml
1 2 4	1 0 0 0
1 2 5 - 9 7	0 0 0 5 0 0	water tank holds water used
2 7	5 0 0	water remain

∴ 27 l 500 ml water remains in the tank.