1.

A bus is travelling from City A to City B. If the bus doesn't stop anywhere on the way, its average speed works out to 50 km/hr but if takes 4 stops of 15 minutes each, the average speed works out to 40 km/hr. Find the distance between the two cities.

A. 200 km
B. 360 km
C. 450 km
D. 630 km
Answer» D. 630 km


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