Mathematics · Time and Work

'A' can do a piece of work in 20 days, 'B' can do it in 24 days, and 'C' can do the same in 30 days. They undertake the work together for Rs 5,400. However, 'B' leaves the work 2 days before its completion and 'C' leaves 5 days before its completion. 'A' completes the remaining work. What share of the total money does 'A' get?