A van and a Lamborghini started travelling from Town V to Town W at the same time. After 6 hours, the Lamborghini reached Town W while the van covered only ⁵₇ of the journey. The speed of the van was 26 km/h less than the speed of the Lamborghini. Find the speed of the Lamborghini.
Extra distance covered by the Lamborghini in 6 h
= 6 x 26
= 156 km

When the Lamborghini reached Town W:
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 = 156

1 u = 156 ÷ 2 = 78

Distance covered by the Lamborghini when it reached Town W
= 7 u
= 7 x 78
= 546 km

Speed of the Lamborghini
= 546 ÷ 6
= 91 km/h

Answer(s): 91 km/h