In two days A, B and C togethercan finish 1/2 of a work and in another 2 days B and C together can finish 3/10 par of the work.Then A alone can complete the whole work in
(a) 15 days
(b) 10 days
(c) 12 days
(d) 14 days
Correct option (b) 10 days
Explanation:
A alone will complete the work = 20/2 days = 10 days
