A lorry and a Lamborghini started travelling from Town F to Town G at the same time. After 2 hours, the Lamborghini reached Town G while the lorry covered only ⁵₇ of the journey. The speed of the lorry was 24 km/h less than the speed of the Lamborghini. Find the speed of the Lamborghini.
Extra distance covered by the Lamborghini in 2 h
= 2 x 24
= 48 km

When the Lamborghini reached Town G:
Distance covered by the Lamborghini = 7 u
Distance covered by the lorry = 5 u

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

2 u = 48

1 u = 48 ÷ 2 = 24

Distance covered by the Lamborghini when it reached Town G
= 7 u
= 7 x 24
= 168 km

Speed of the Lamborghini
= 168 ÷ 2
= 84 km/h

Answer(s): 84 km/h