Mathematics · Work and Time

'A' can complete 75% of a work in 12 days. 'B' takes 8 days more than 'A' to complete the work and B is 3313% more efficient than 'C'. 'A' started the work alone and on the 2nd day, he is joined by 'B' only; on the 3rd day, he is joined by 'C' only, on the 4th day he works alone again, and so on. They worked this way for 9 days. The sum of the time taken to complete the remaining work by 'A' alone and by 'B' alone is how much percent more/less than that by 'C' alone?