Saved Bookmarks
| 1. |
A train covers a distance in 50 minutes, if it runs at a speed of 48kmph on an average. Find the speed at which the train must run to reduce the time of journey to 40 minutes. |
|
Answer» Answer: Ans is 60 km/hr Step-by-step EXPLANATION: We are having time and speed given, so first we will CALCULATE the distance. Then we can get NEW speed for given time and distance. Lets SOLVE it. Time = 50/60 hr = 5/6 hr Speed = 48 mph Distance = S x T = 48 x 5/6 = 40 km New time will be 40 minutes so, Time = 40/60 hr = 2/3 hr Now we know, Speed = Distance/Time New speed = 40 x 3/2 kmph = 60kmph * please thanks if you like my ans |
|