Question

2. A and B can do a piece of work in 72 days. B and C in
120 days and A and C in 90 days. In what time can A
alone do it?
(a) 55 days (b) 120 days (c) 110 days (d) 60 days
Jin y Yand z days​

Answer 1

Step-by-step explanation:

its the ans that you want