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     EduGorilla 
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    Edwin and Albert complete a piece of work in 12 days and 20 days, respectively. Edwin alone started the work and after 4 days Albert joined him.

    (i) How much work did Edwin do in 4 days?
    (ii) In how many days can both finish the balance work together?

    Options :-

    1. 2/3, 4
    2. 1/2, 3
    3. 4/5, 6
    4. 1/3, 5
    5. None of these
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