Question

1. A and B can do a piece of work in 72 days. B and C can do it in 120 days. A and C can do it in 90 days. In how many days can A alone do it?
(1) 80 days (2) 100 days (3) 150 days
(4) 120 days (5) None of these​

Answer 1

Answer:

None of these

Step-by-step explanation:

because in 1 statement A and B both can work 72 days