Problem Solving (PS) | Re: A car is moving from A to B at a constant speed. After 80 km, due to a

A car is moving from A to B at a constant speed. After 80 km, due to an engine malfunction, the speed of the car decreases to 4/5th of the original speed. Because of that, the car reaches B 1 hour and 24 minutes later than intended. Had the same malfunction happened after the bus travelled 120 km, the car would have reached B 1 hour later than intended. What was the original speed of the bus?

A. 15 Km/hr
B. 20 Km/hr
C. 25 Km/hr
D. 30 Km/hr
E. 40Km/hr

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