Preference

Question: If a pipe fills a tank in h hours what part of the tank does it fill in 2 hours?

  1. a.
    2/h
  2. b.
    h/2
  3. c.
    2h
  4. d.
    (1 - 2)/hg
  5. e.
    None of these
Answer: a

Question: A pipe can fill a tank in 64 minutes and another can empty it in 32 minutes. If the tank is already half full and both pipe opened together, the tank will be--

  1. a.
    filled in 32 minitues
  2. b.
    emptied in 64 minutes
  3. c.
    emptied in 32 minutes
  4. d.
    filled in 64 minutes
  5. e.
    None of these
Answer: b

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