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The Speed Of A Boat In Standing Water Is 9 Km Ph And The Speed Of The Stream Is 1.5 Km Ph. A Man Lines To A Place At A Separation Of 105 Km, And Returns To The Beginning Stage. The Aggregate Time Taken By Him Is

Answer»

Speed upstream = 7.5 km PH

Speed downstream = 10.5 km ph. 

ADD up to time taken = 105/7.5 + 105/10.5 hours = 24 hours.

Speed upstream = 7.5 km ph. 

Speed downstream = 10.5 km ph. 

Add up to time taken = 105/7.5 + 105/10.5 hours = 24 hours.



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