A boy walks to his school at a distance of 6 km with
constant speed of 2.5 km/hour and walks back with a
constant speed of 4 km/hr. His average speed for round
trip expressed in km/hour, is
1. 24/13
2. 40/13
3. 3
4. 1/2
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1
Answer:
24/13 option 1 is right
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