CBSE Class 10 Answered
If x is the speed of boat in still water and y is the speed of water then write the formula to find the time taken by the boat in upstream and downstream
Asked by sureshchp | 07 Jun, 2019, 11:17: AM
![Speed space of space boat space rightwards arrow space straight x space km divided by hr
Speed space of space stream rightwards arrow space straight y space km divided by hr
Speed space of space boat space upstream space rightwards arrow space straight x space minus space straight y space km divided by hr
Speed space of space boat space space down space stream rightwards arrow straight x plus space straight y space km divided by hr
if space distance space is space straight D
upstream space time space equals space fraction numerator straight D over denominator space straight x space minus space straight y space end fraction space hrs
down space stream space time space equals space fraction numerator straight D over denominator space straight x space plus space straight y space end fraction space hrs](https://images.topperlearning.com/topper/tinymce/cache/811ed9aa2d0d49bcf19b039cc874ffb6.png)
Answered by Arun | 07 Jun, 2019, 13:42: PM
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