Six pipes are fitted to a water tank. Some of these are inlet pipes and the…
2025
Six pipes are fitted to a water tank. Some of these are inlet pipes and the others outlet pipes. Each inlet pipe can fill the tank in 9 hours and each outlet pipe can empty the tank in 6 hours. On opening all the pipes, an empty tank is filled in 9 hours. How many inlet pipes are there?
Answer: B. 4 — Answer: Option B x / 9 – y / 6 = 1/9; 2x – 3y = 2 We can compute that x = 4 and y = 2. Thus, Inlet pipe = x = 4.
- A.
2
- B.
4
- C.
3
- D.
5
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Correct answer: B
Answer: Option B
x / 9 – y / 6 = 1/9;
2x – 3y = 2
We can compute that x = 4 and y = 2.
Thus, Inlet pipe = x = 4.
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