A boat goes upstream at 36 km/h and downstream at 40 km/h. The distance covered in each trip being the same, find the speed of boat in still water.A45 km/hB34 km/hC38 km/hD2 km/hAnswer: C. 38 km/h Read Explanation: if we know the upstream and downstream speed then the speed in still water is the mean of these two speeds =36+402=38kmph=\frac{36+40}{2}=38kmph=236+40=38kmph Read more in App