Question
Pipes ‘A’ and ‘B’ can fill a tank in 15 hours and 30 hours, respectively. Pipe ‘A’ was opened 3 hours before pipe ‘B’ and then operated with pipe ‘B’ for 6 hours after which pipe ‘B’ was closed. Find the total time taken to fill the tank this way.
More Pipes and cisterns Questions
- Pipe 'A' alone takes 12 minutes to fill half the tank. Pipe 'B' is twice as efficient. What percentage of the tank is filled by both in 6 minutes?
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