A1 alone can do a work in 12 days and A2 alone can do the same work in 15 days. With help of A3, they finish the same work in 5 days. In how many days A3 alone can do the same work ?
- AOption (a)
16 days
- BOption (b)
20 days
- COption (c)
24 days
- DOption (d)
27 days
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Correct answer
16 days














