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A man walk on a straight road from his home toa a market 2.5 km away with a speed of 5km/h. Finding the market closed he instantly turns and walk back home with a speed of 7.5 km/h the average speed of the man over the interval bof time 0to 40 min.is equal to

A man walk on a  straight road from his home toa a market 2.5 km away with a speed of 5km/h. Finding the market closed he instantly turns and walk back home with a speed of 7.5 km/h the average speed of the man over the interval bof time 0to 40 min.is equal to
 

Grade:12th pass

1 Answers

Sushmita sengar
10 Points
2 years ago
A train has a speed of 60km/h for the first one hour and 40km/h for the next half hour its average speed in km/h

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