Ramaswamy and his wife, and child can do a piece of work in 6 days.Wife alone can do the work in 16 days,child alone can do the work in 24 days then Ramaswamy alone can do the work in how many days?

3.6 days

4 days

5 days

5.4 days

Assume husband is x,wife is y,child is z then x+y+z=6 days then y+z=1/16 +1/24=

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