Need math help with the fraction of the work of an individual and a team

Jan 9th, 2016
RockCafe
Category:
Mathematics
Price: $10 USD

Question description

A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is :

A can lay railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only. Then, C alone can do the job in:

A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?

A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:

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(Top Tutor) Daniel C.
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