A bus and a Lamborghini started travelling from Town Y to Town Z at the same time. After 6 hours, the Lamborghini reached Town Z while the bus covered only ⁵₇ of the journey. The speed of the Lamborghini was 24 km/h more than the speed of the bus. Find the speed of the bus.
Extra distance covered by the Lamborghini in 6 h
= 6 x 24
= 144 km

When the Lamborghini reached Town Z:
Distance covered by the Lamborghini = 7 u
Distance covered by the bus = 5 u

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

2 u = 144

1 u = 144 ÷ 2 = 72

Distance covered by the bus when the Lamborghini reached Town Z
= 5 u
= 5 x 72
= 360 km

Speed of the bus
= 360 ÷ 6
= 60 km/h

Answer(s): 60 km/h