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The ratio of efficienciess of A, B can C...

The ratio of efficienciess of A, B can C is `2:3:4`. Working together, they can coplete a work in 20 days. In how many days can C alone finish the work?

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The correct Answer is:
45 days
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PEARSON IIT JEE FOUNDATION- TIME AND WORK-TEST YOUR CONCEPTS
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  14. 12 men and 15 women can do a work in 6 days, and 6 men and 12 women ca...

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