A lorry and a Lamborghini started travelling from Town Z to Town A at the same time. After 5 hours, the Lamborghini reached Town A while the lorry covered only ⁷₉ of the journey. The speed of the lorry was 26 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 26
= 130 km

When the Lamborghini reached Town A:
Distance covered by the Lamborghini = 9 u
Distance covered by the lorry = 7 u

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

2 u = 130

1 u = 130 ÷ 2 = 65

Distance covered by the Lamborghini when it reached Town A
= 9 u
= 9 x 65
= 585 km

Speed of the Lamborghini
= 585 ÷ 5
= 117 km/h

Answer(s): 117 km/h