A and B can finish a work in 12 days, B and C together in 18 days. A and B start the work and A left after 4 days, C joins B on the 5th day and B left after the 6th day. C finished the work on 21st day, then in how many days can A himself finish the work
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108/7 days is the answer .........
sharukh387:
steps pls
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