DSSSB · Mathematics
Pipes P, Q, and R can fill a tank in 24, 36, and 48 hours, respectively. The tank is initially empty. Pipe P is opened for 3 hours, then closed. Then pipe Q is opened for 5 hours and then closed. How many hours will pipe R alone take to fill the remaining portion of the tank?
- 36 hours
- 34 hours
- 33 1/3 hours
- 35 1/3 hours
Pipes P, Q, and R can fill a tank in 24, 36, and 48 hours, respectively. The tank is initially empty. Pipe P is opened for 3 hours, then closed. Then pipe Q is opened for 5 hours and then closed. How many hours will pipe R alone take to fill the remaining portion of the tank?
- 36 hours
- 34 hours
- 33 1/3 hours
- 35 1/3 hours
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