1. A and B can do a piece of work in 10 days. B and C can do it in 15 days and A and C together can do it in 12 days. If they work together,how long will they take to complete the work? Also find how long C will take to complete the work working alone.
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Step-by-step explanation:
A and B together can do a piece of work in 10 days, while B and C together can do it in 12 days and C and A together in 15 days. In how many days C would complete it alone? Hence C will finish the work in 40 days. So option [C] is correct answer.
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