A man can row a boat at 25/9 meters per second in still water and the speed of the stream is 8 kmph. What is the time taken (in hours) to row a distance of 90 km down the stream?
(25/9) m/s = (25/9)*(18/5) kmph = 10 kmph. Boat speed down stream = 8 + 10 = 18 kmph Time taken for the travel = 90/18 hours = 5 hours.
The speed of the train is two more than twice of the time taken to cover 1012 km at uniform speed. What is the ratio of the values of time taken to cover the distance and speed of the train?
Kajal and Rajendra start running from the same place at the rate of 7.6 kmph and 7.85 kmph respectively. What time in hours will they take to be 13.5 km apart, if they run in the same direction?
A car can travels 450 km in 4 hours. If the speed is decreased by 15 1/2 kmph, how much time does the car take to cover a distance of 873 km?
A bus takes 1 hour 20 minutes more to travel a distance of 210 km, if its speed is reduced by 10 km/hr than actual speed. Find the time taken to cover a distance of 300 km at double the usual speed.
The speed of a van increases by 5 kmph after every one hour. If the distance travelled in the first one hour was 55 km, what was the total distance travelled in 8 hours?
