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A, B and C can complete a piece of work in 10 days, 20 days and 25 days, respectively. If they tak 40 days to complete a piece of work, then in how ma

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A, B and C can complete a piece of work in 10 days, 20 days and 25 days, respectively. If they tak 40 days to complete a piece of work, then in how many days can C alone complete the work ?
A. 65 days
B. 76 days
C. 95 days
D. 190 days
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Correct Answer - D
(i) The ratio of capacities of A,B and C is `10:5:4`.
(ii) Find the time taken by A,B and C together to complete the work (say d)
(iii) When they are taking d days, C alone takes 25 days.
(iv) Find the how many C alone takes if they complete the work in 40 days.
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