the average age of male employees in a firm is 52 years and the average age of female employees is 42 yrs.if the mean age of all employees is 50 yrs . the percentage of male and female employees is a)80 and 20 b)20 n 80 c)50 n 50 d)52 n 48

• Ans option a : 80 n 20
  Let mal be m and fem be f
  Male : M
  Avg : 52
  Total:52M
  Female:F
  Avg:42
  Total 42F
  
  Whole Avg given as 50
  So total /no of . = avg
  (52M+42F)/(M+F) = 50
  M/F =4/1
  In % 80 /20
• 10 years agoHelpfull: Yes(15) No(0)
• let total no. of male is M and female is F
  so sum of all males= 52M
  sum of all females=42F
  mean age of all employee is 50, means its the average age of all male and female
  sum of males+sum of females=50(M+F)
  52M+42F=50M+50F
  BY solving we get,
  M=4F
  using this % of male and female employee=80 and 20
• 10 years agoHelpfull: Yes(1) No(0)
• option a) ;
  let m=x & f=y;
  then 52x+42y/x+y=50;
  x:y =4:1
• 10 years agoHelpfull: Yes(0) No(0)
• Dummy Question
• 10 years agoHelpfull: Yes(0) No(4)
• M*2 = F*8
  M/F = 4/1
  80% & 20%
• 10 years agoHelpfull: Yes(0) No(0)