Question

12. A and B can do a piece of work in 20 days and B in 15 days. They work together for 2
days and then A goes away. In how many days will B finish the remaining work?
1​

Answer 1

Answer:

11 or 12 days

Step-by-step explanation:

Complete work is done by B in 15 days .

∴ 23 30 of the work will be doneby B in ( 15 × 23 30 ) days or 23 2 days or 11 1 2 days .

Thus, the remaining work isdone by B in 11 1 2 days .