Question

Rahul takes 5 hours to drive from town 'P' to town 'Q' at a speed of 50 km/h. He then increases his speed by 20% and takes 3 hours to reach town 'R' from 'Q'. What is Rahul's average speed from town 'P' to 'R'?

A 42.65 km/h
B 35.55 km/h
C 69.65 km/h
D 53.75 km/h
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