If 12 men or 24 boys can do a work in 66 days, the number of days in which 15 menand 6 boys can do it is

If 12 men or 24 boys can do a work in 66 days, the number of days in which 15 menand 6 boys can do it is
1). 44
2). 33
3). 55
4). 66

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