Preference

Question: If 5 men and 9 women can do a pice of work in 19 days, then in how many days will 3 men and 6 women do the same work?

  1. a.
    12
  2. b.
    15
  3. c.
    18
  4. d.
    21
  5. e.
    None of these
Answer: Answer not available.

Question: One worker can do a job in n hours, while it takes a second worker m hours to do the same job. How long does it take both workers?

  1. a.
    (m + n)/mn
  2. b.
    mn/(m + n)
  3. c.
    m + n
  4. d.
    1/m + 1/n
  5. e.
    None of these
Answer: b

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