S, M, E and F are working in shifts in a team to finish a project. M w – McqOptions

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1.	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 in 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» C. 1 : 4

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