Math, asked by smk1, 1 year ago

A trains takes 6 hour to complete a journey at a speed of 72km/h . how long will another train take to complete the same journey if its speed is 15m/s

Answers

Answered by shiva139
34
Speed of train 72km/h
Speed = distance/time
Total Distance covered by train = speed*time
= 72*6 = 432 km
Time to covered same distance
Time = Distance/speed
= 432/15 = 28 hours aproxx

Xyz123xyz: It's 15mps change it to kmph
Answered by Xyz123xyz
110
Speed of train A= 72kmph
Time taken by trainA= 6hrs
Distance=speed×time
= 72×6
=432km
Change 15mps into kmph
=15×18/5
=54kmph(speed of train B)
Time = distance /speed
Time by train B=432/54
=8 hours
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