1.

If a train runs at 60 km/h, it reaches its destination 15 minutes late. But, if it runs at 80 km/h, it is late by 7 minutes only. The right time for the train to cover its journey is∶

A. 18 minutes
B. 17 minutes
C. 20 minutes
D. 21 minutes
Answer» C. 20 minutes


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