Pls help me with this the correct answers are 2 kmph and 24m

Question

ASANKA · Answer

speed of train=v length of coach=l speed of boy relative to train is =(10-v)km/hr in 1 st case, the boy takes time to cover the train is=(30/1000)hr=0.003hr then,(10-v)*0.003=l........... thus for 2 nd case, relative speed is=(10+v)km/hr time taken=(20/10000)hr=0.002hr then,(10+v)*0.002=l........... solving 1 & 2 v=2 km/hr l=24 m hope it will be helpfull.

Vibekjyoti Sahoo · Answer

speed of train=v length of coach=l speed of boy relative to train is =(10-v)km/hr in 1 st case, the boy takes time to cover the train is=(30/1000)hr=0.003hr then,(10-v)*0.003=l........... thus for 2 nd case, relative speed is=(10+v)km/hr time taken=(20/10000)hr=0.002hr then,(10+v)*0.002=l........... solving 1 & 2 v=2 km/hr l=24 m

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Pls help me with this the correct answers are 2 kmph and 24m

Pls help me with this

the correct answers are 2 kmph and 24m

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