A van and a Lamborghini started travelling from Town W to Town X at the same time. After 5 hours, the Lamborghini reached Town X while the van covered only ⁷₉ of the journey. The speed of the Lamborghini was 24 km/h more than the speed of the van. Find the speed of the van.
Extra distance covered by the Lamborghini in 5 h
= 5 x 24
= 120 km

When the Lamborghini reached Town X:
Distance covered by the Lamborghini = 9 u
Distance covered by the van = 7 u

Extra distance covered by the Lamborghini 
= 9 u - 7 u
= 2 u

2 u = 120

1 u = 120 ÷ 2 = 60

Distance covered by the van when the Lamborghini reached Town X
= 7 u
= 7 x 60
= 420 km

Speed of the van
= 420 ÷ 5
= 84 km/h

Answer(s): 84 km/h