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Gujarat Class 10 Answered

The speed of motorboat in still water is 25 km/hr. in a river , it covers 60 km downstream and the same distance upstream in a total time of 5 hours . find the speed of current water.
Asked by mangalkalyani1983 | 07 Jun, 2019, 03:53: PM
answered-by-expert Expert Answer
boat space speed space equals 25 space km divided by hr stream space speed space equals space straight s down space stream space equals space 60 space km time space equals space fraction numerator 60 over denominator 25 plus straight s end fraction Up space stream space equals space 60 space km time equals fraction numerator 60 over denominator 25 minus straight s end fraction total space time space equals space 5 space hrs fraction numerator 60 over denominator 25 plus straight s end fraction plus fraction numerator 60 over denominator 25 minus straight s end fraction equals 5 straight s equals 5 km divided by hr
Answered by Arun | 09 Jun, 2019, 08:29: PM

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