Question

1. Joe is x years of age. His sister is two years older

than him and his brother is three years older than
his sister. If his parents ages are both three times
Joe's age, write down an expression for the sum
of the ages of all the members of the family.

Answer 1

9x + 7

Explanation:

Joe's age = x

sister's age = x + 2

brother's age = x + 2 + 3

parents' age = 3x *2 because they are two

Expression= x +x+2+x+2+3+6x

=9x + 7