If sam can do a job in 4 days that lisa can do in 6 days and Tom can do in 2 days , how long would the job take if sam , lisa and Tom worked together to complete it?

If sam can do a job in 4 days that lisa can do in 6 days and Tom can do in 2 days , how long would the job take if sam , lisa and Tom worked together to complete it? Correct Answer 1.09 days

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