Tap A can fill a tank of 1000 litres capacity in 14 hours. It can fill a tank of ……… litres in 7 hours.

Pipe A can fill a tank of capacity 350 litres in 3(1/2) minutes. Pipe B can fill a tank of capacity 780litres in 8(2/3) minutes. How long (in min)will it take to fill a tank of capacity 1615 litres, if both pipes are opened together?

If a pipe can fill a tank of capacity 50 l in 5 hours. Then how long will it take to fill a tank of capacity 75 l.

Tap A can fill a tank in 20 hours, B in 25 hours but tap C can empty a full tank in 30 hours. Starting with A, followed by B and C each tap opens alternatively for one hour period till the tank gets filled up completely. In how many hour the tank will be filled up completely?

Tap K can fill a tank in 8 hours and tap L can fill the same tank in 20 hours. In how many hours both tap K and L together can fill the same tank?

Taps A and B can fill a tank full in 3 hours. Tap B alone can fill the empty tank in 2 hours. How long will tap A take to vacate the tank if it is 25% filled.

Tap A can fill a tank in 10 hours and tap B can fill same tank in 12 hours .Tap C can empty the same full tank in 6 hours .If all the taps are opened together,then what what portion of the tank will be filled after 6 hours ?

Pipe C can fill a tank in 12 hours and pipe D can fill the same tank in 40 hours. In how many hours both pipe C and D together can fill the same tank?