- A3 days
- B4 days
- C6 days
- D9 days
Step-by-Step Solution
One day's work = 1/12 + 1/6 = 1/12 + 2/12 = 3/12 = 1/4. So together they finish in 4 days.
Answer: B) 4 days
A can do a piece of work in 12 days and B in 6 days. Working together, in how many days will they finish it?
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