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The Speed Of A Motor Boat Is That Of The Current Of Water As 36:5. The Boat Goes Along With The Current In 5 Hours 10 Min, It Will Come Back In? |
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Answer» LET the speed of motor boat be 36X KM/hr and that of current of WATER be 5x km/hr Speed downstream = (36x +5x)km/hr = 41x km/hr Speed upstream = (36 -5x)km/hr = 31x km/hr Distance covered downstream = (41x × 31/6)km Distance upstream = [1271x/6 × 1/31x]hrs = 41/6 hrs = 6hrs 50 min. Let the speed of motor boat be 36x km/hr and that of current of water be 5x km/hr Speed downstream = (36x +5x)km/hr = 41x km/hr Speed upstream = (36 -5x)km/hr = 31x km/hr Distance covered downstream = (41x × 31/6)km Distance upstream = [1271x/6 × 1/31x]hrs = 41/6 hrs = 6hrs 50 min. |
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