A is thrice as good a work man as B and takes 10 days less to do a piece of work than B takes. B can do the work in:___________?
B. 14 days C. 16 days D. 30 days Raio of times taken by A and B = 1 : 3 If the difference of time is 2 days, B takes 3 days. If the difference of time is 10 days. B takes [3/2×10]=15 days