A family, made up of 2 parents with children, has an average age of 20.
If you exclude one parent, who is 40, the average age drops to 15.
How many kids are in the family?
let the number of members be N 20N-40=15(N-1) gives N=5 thus number of children=3
I torture children and parents, Many people scream and wall in my presence. Parents drag their kids to me, I am supposed to create smiles, But often there is only a frown. What am I?
The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, the average age of the family at the birth of the youngest member was?
In a class there are total 63 students. The average age of girls is 24 years and that of boys is 21 years. If the average age of whole class is 22 years and 8 months, then how many boys are there in a class?
Mr. and Mrs. Jones have three children, all under the age of 20, but none with the same age. Last year, the product of the three ages was 224. This year the product of the three ages is 360 What are the children's ages now?
