Question

A can finish the work in 18 days and B can do the same in 15 days . B alone worked for 10 days and left the job. If A alone has to finish the remaining work the number ofdays it takes is

Answer 1

We will use the LCM technique to solve this.

A takes 18 days to complete the task whereas B takes 15 days to complete.

Let the TOTAL WORK = 90 Units

So, A does 5 Units/day

B does 6 Units/day

B worked for 10 days and left the job. So, work done by B = 60 Units

Remaining Work = 30 Units.

Thus, A will take = 305305 = 6 Days (Answer)