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Total students = Ruchi's rank + 1 + Rohan's rank = 7 + 1 + 20 = 28 .
Pipe ‘A’ can fill a tank in 20 hours while pipe ‘B’ takes 25 hours to empty it. Pipe ‘A’ is opened alone when the tank was empty and after 1...
Pipe ‘A’ and pipe ‘B’ can fill a cistern in 18 minutes and 20 minutes respectively. Pipe ‘C’ alone can empty the cistern in 12 minutes. If a...
If a tank can be filled by a tap in 14 hours, but due to an outlet, it actually takes 4 hours longer to fill the tank, find the duration in which the ou...
Pipes X and Y can independently fill a tank in 80 minutes and 90 minutes respectively, while pipes X and Z together take 3 hours to fill the same tank. ...
Tap ‘A’ and tap ‘B’ can fill a tank in 42 hours and 30 hours, respectively. If both taps are opened together, then find the time after which tap...
Together, the three intake pipes, "P," "Q," and "R," can fill a water tank in eight hours. While the three pipes are opened simultaneously, pipe "Q" clo...
Tap A can fill a tank in 15 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. 2/5 part ...
Pipes A, B, and C are connected to a tank. Pipe A can fill the empty tank in 48 minutes, and Pipe B can do the same in 80 minutes. On the other hand, Pi...
Tap A can fill a tank in 8 hours. Tap B can fill 12.5% part of the same tank in 2 hours, whereas Tap C can alone empty a tank in ‘x’ hours. 5/8 part...
Pipe ‘G’ and pipe ‘H’ together can fill an empty tank in 40 hours while pipe ‘H’ and pipe ‘I’ together take 25 hours to fill the same ta...
