A van and a Lamborghini started travelling from Town U to Town V at the same time. After 5 hours, the Lamborghini reached Town V while the van covered only ⁵₇ of the journey. The speed of the van was 24 km/h less than the speed of the Lamborghini. Find the speed of the Lamborghini.
Extra distance covered by the Lamborghini in 5 h
= 5 x 24
= 120 km

When the Lamborghini reached Town V:
Distance covered by the Lamborghini = 7 u
Distance covered by the van = 5 u

Extra distance covered by the Lamborghini 
= 7 u - 5 u
= 2 u

2 u = 120

1 u = 120 ÷ 2 = 60

Distance covered by the Lamborghini when it reached Town V
= 7 u
= 7 x 60
= 420 km

Speed of the Lamborghini
= 420 ÷ 5
= 84 km/h

Answer(s): 84 km/h