the present age of a woman is 6 times that of her only daughter,anu.her husbands age is 2 years more than 7 times anu's.the average age of anu,her parents and her only brother(who is the youngest of all the 4 members)is 15 years.by how many years is anu elder than her brother?pl. provide sol.

1) 1
2) 2
3) 3
4) cannot be determined

• 2) 2 Years
  Let Anu's age=a
  Age of Mother=6a, Father=7a+2
  If younger brother's age=b
  Given Average age=15=a+6a+7a+2+b/4 =>14a+b=58
  To satisfy the above condition b
• 12 years agoHelpfull: Yes(2) No(0)
• Pl. read the above solution as
  for b to be smaller than a ,equation 14a+b=58 can have the value a=4,b=2
  So difference between their age=4-2= 2 years
• 12 years agoHelpfull: Yes(0) No(1)
• Ans is 2)
  Let Anu's age is X then her mother is 6X and her father is 7X+2,
  Let her brother's age is y then (7X+2+6X+X+Y)/4=15
  14X+Y=58
  PUTTING Y=2 equation solved.
• 11 years agoHelpfull: Yes(0) No(0)