Question

The speed of a car is 30% more than that of a bike. Both of them start from a same point. After travelling for 7 hours, the speed of the bike is increased by 35%. After 9 hours from starting, the car was 50 km ahead of the bike. Find the initial speed of the bike.

A 22 km/hr
B 21 km/hr
C 25 km/hr
D 20 km/hr
E None of these
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