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#29387 Bangla Language & Literature Pipe and Tank Level 0

One pipe can fill a pool in 6 hours and a second pipe can fill the same pool in 12 hours. If both pipes work together, how long will it take to fill the pool?

  1. A 3 hours
  2. B 3.5 hours
  3. C 4 hours
  4. D 4.5 hours
Answer: C - 4 hours

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