A and B together can do a piece of work in 12 days and A alone can complete the work in 18 days. How long will B alone take to complete the job ?

Explanation

To solve the problem step by step, we can follow these calculations:

### Step 1: Determine the work rates of A and B
- A and B together can complete the work in 12 days. This means their combined work rate is:
\[ \frac{1}{12} \text{ (work done per day)} \]
- A alone can complete the work in 18 days, so A's work rate is:
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