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CBSE Notes 2011-2012

The mean age of combined group of men and women is 30 years. If the mean of the age of men and women...

Multiple choice question

The mean age of combined group of men and women is 30 years. If the mean of the age of men and women are respectively 32 and 27, then the percentage of women in the group is

unknown

30

unknown

20

unknown

50

unknown

40