Q. |
A can do a piece of work in 12 days and B in 15 days. If they work on alternate days and A starts the work, In how many days will the work be complted? |
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A. 14 |
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B. 13 1 / 4 |
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C. 14 1 / 3 |
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D. 12 3 / 4 |
Let the work = 60 units
A does 5 units on the first day
B does 4 units on the second day.
9 nuts are completed in 2 days
54 units in 12 days
Next day A does 5 units.
B completes 1 unit in 1/4 day.
Total = 12 + 1 + 1/4 = 13 1/4 days