A, B and C can do a piece of work in 4 days , 5 days, and 7 days, respectively get `Rs.415` for completing the job. If A,B and C have worked together to complete the job, what is A's share?

Explanation

Since they work for the same number of days, the ratio in which they share the mony is the ratio of the work done per day.
That is `, (1)/(4):(1)/(5):(1)/(7)=35:28:20`
Hence . A's share is `((35)/(83))xx415=Rs. 175`