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A car covers a distance in 50 minutes, if it runs at a speed of 48kmph on an average. Find the speed at which the car must run to reduce the time of journey to 40 minutes.
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*T = 48 * 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*3/2 kmph = 60kmph
By: MIRZA SADDAM HUSSAIN ProfileResourcesReport error
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