Volume P6 2010 SA2 Pei Chun P2 Q15

36 x 36 x 36 = 46656 cm3

46656/(72 x 24) = 27 cm

7 u  -->  27 + 15 = 42

8 u  -->  8/7  x 42 =  48 cm

72 x 24 x 48 = 82944 cm3

                    = 82.944 litres

It was 82.944 litres.