Q.5 S, M, E and F are working in shifts in a team to finish a project. M works with twice the efficiency of others but for half as many days as E worked. S and M have 6 hour shifts i a day, whereas E and F have 12 hours shifts. What
is the ratio of contribution of M to contribution of E in the project?
(A) 1 : 1
(B) 1 : 2
(C) 1 : 4
(D) 2 : 1
Answer: (B)
Explanation:
