km/h?
much time would it save if it
13. A girl walks 12 km at the speed of 3 km/h. What change should she make in her speed to
take (i) an hour less and (ii) an hour more to cover the distance?
14. A motorcyclist travels at 30 km/h and stops for half an hour of thi
long will it take him
de
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Answer:
13) ii)an hour more to cover the distance. 14) 15 in 30 minute
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