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  1. Ajit is 3 times as efficient as Bablu, then the ratio of number of days required by each to work alone, completely?
    1. 3 : 1
    2. 1 : 3
    3. 6 : 3
    4. 3 : 6
Correct Option: B

Efficiency of Ajit : Bablu = 3 : 1
No. of days 1 : 3


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