Engineering Board Exam Reviewer · Work Problems · easy

A can paint a house in 6 days and B can paint it in 3 days. Working together, how many days will they take?

  1. 4 days
  2. 2 days
  3. 3 days
  4. 9 days

Answer

B. 2 days

Solution

Combined rate: 16+ 13= 12 of the job per day, so they need 2 days.

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