![Two persons A and B started a work and after 10 days B left the work. Two days after B left, C joined A, and the total work was](https://www.gkseries.com/blog/wp-content/uploads/2024/04/Two-persons-A-and-B-started-a-work-and-after-10-days-B-left-the-work.-Two-days-after-B-left-C-joined-A-and-the-total-work-was.jpg)
Two persons A and B started a work and after 10 days B left the work. Two days after B left, C joined A, and the total work was completed in ‘ N’ days. Each person completes an equal share of the work. It is known that A and B together can complete the work in ‘ N’ days. ‘C’ alone can complete the work in.
a) 30 days
(b) 24 days
(c) 25 days
(d) 22 days
Sol:
![](https://www.gkseries.com/blog/wp-content/uploads/2024/04/image-40-1024x692.png)
![](https://www.gkseries.com/blog/wp-content/uploads/2024/04/image-41-1024x481.png)