19 persons do 19 programs in 19 hours . If they take 15 mins interval and then how much time they need to do 52 programs.
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?
P is able to do a piece of work in 15 days and Q can do the same work in 10 days. If they can work together for 2 days, what is the fraction of work left?
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?
Two taps can fill a tank in 4 hours and 5 hours.
If two taps are operate simultaneously, in how much time will the tank be filled?
A tank can be filled by the Tap A in 4 Hrs and by Tap B in 6 Hrs. The same tank can be emptied by the Tap C in 8 Hrs. Now suppose we keep all three taps on then how much time it will take to fill?