Question

a,b and c can do a piece of work in 6,9 and 12 days respectively, they work at it together. A stops the work after 2 days and b is called off 1 day before the work is done. in what time was the work finished?

Answer 1

Step-by-step explanation:

a b c

6 9 12

a stops the work after 2 days

b is called off 1 day before the work is done

so a worked2 days

b worked8 days and

c worked 12days =2+8+12=22