How far can the tempo travel on 15 litres of petrol at a speed of 75 kmph?

Question

A tempo, while travelling at 75 kmph, uses 25% more petrol then it uses while travelling at 50 kmph for travelling a certain distance.
Using one litre of petrol, it can travel 22.5 km at 50 kmph.
How far can the tempo travel on 15 litres of petrol at a speed of 75 kmph?

Answer 1

Tempo @ 50 KMPH has 22.5 KM/LTR
Tempo @ 75 KMPH consumes 25% more Petrol, therefore travels less distance ie., 22.5/1.25 = 18 KM/LTR
Therefore the Tempo travelling @ 75 KMPH can travel 15 LTR x 18 KM/LTR = 270 KM.