Let the speed of the stream be x km/hr and both the boats meet after t hours According to the question, ⇒ (17 + x) t + (20 – x) t = 222 ⇒ 17t + 20t = 222 ⇒ 37t = 222 ⇒ t = 222/37 = 6 hours
Tap A can fill a tank in 8 hours. Tap B can fill 20% part of the same tank in 4 hours, whereas Tap C can alone empty a tank in ‘x’ hours. 4/7 part o...
Pipe L can empty the tank which is 45% filled in 9 hours. The time taken by pipe K and J together to fill an empty tank completely in 7.5 hours. Pipe J ...
Pipe ‘A’ can fill a tank in 25 hours whereas leak ‘A’ can empty it in 30 hours. If they both operate along with pipe ‘B’, then the given tan...
Pipe A can fill a tank in 12 hours and pipe B takes 18 hours to fill it. Both pipes were open together and a leak was spotted which increased the fillin...
Two pipes, A and B, can independently fill the tank in 15 minutes and 20 minutes respectively, while pipe C can empty 7 gallons from the tank in 2 minut...
Pipe ‘A’ can fill a 120-litre tank in 15 hours. If pipe ‘A’ is 25% more efficient than pipe ‘C’ whereas pipe ‘B’ is 50% more efficient t...
Two pipes can alone independently fill a bucket in 10 and 12 minutes. Both are opened together for 3 minutes after which the second pipe is turned off. ...
Pipe ‘A’ can fill a 300-litre tank in 30 hours. If pipe ‘A’ is 25% more efficient than pipe ‘C’ whereas pipe ‘B’ is 50% more efficient t...
A cistern has two pipes one can fill it with water in 16 hours and other can empty it in 10 hours. In how many hours will the cistern be emptied if both...
An inlet can fill an empty tank in 6 hours whereas an outlet pipe can empty it in 12 hours. If (N - 1) such outlet pipes having same efficiency and (N +...
