A, B and C can finish a job working alone in 72, 24 and 36 days respectively. In how many days they can finish the job if they worked together?1). 122). 93). 154). 18

A, B and C can finish a job working alone in 72, 24 and 36 days respec

1.	A, B and C can finish a job working alone in 72, 24 and 36 days respectively. In how many days they can finish the job if they worked together?1). 122). 93). 154). 18
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