Question
‘A’ can complete 2/5 of a work in 6 days. ‘B’ takes 9 days more than ‘A’ to complete the work and B is 25% more efficient than ‘C’. ‘A’ started the work alone and on 2nd day, he is joined by ‘B’ only, on 3rd day, he is joined by ‘C’ only and on 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?
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