A can complete a piece of work in 40 days and B can complete the same work in 60 days. They work together for 8 days. How much work is left?
Total Work = LCM of 40 and 60 = 120 unit
Efficiency of A = = 3 unit per day
Efficiency of B = unit per day
Work done by both of them in 8 days = (3+2)× 8 = 40 unit
Remaining Work left = 20-40 = 80
Work fraction left =
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