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     EduGorilla 
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    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?

    Options :-

    1. 1:1
    2. 1:2
    3. 1:4
    4. 2:1
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