The average age of family of 5 members is 50. A member whose age is 50 years, is excluded, then age of other members are in the ratio 1: 2: 3: 4. What is the age of the youngest member of the family?
1
30
2
20
3
40
4
50
The average age of family of 5 members is 50. A member whose age is 50 years, is excluded, then age of other members are in the ratio 1: 2: 3: 4. What is the age of the youngest member of the family?