Question

Mia is three years older than twice for Sister Brooke’s age. The sum of their ages is less than 30. What is the greatest age Brooke could be? 7, 10, 8, or 9?

Answer 1

the greatest age is 8

Explanation:

i took the test

Answer 2

x : Brooke age
3+2x : Mia age

`x + 3 + 2x < 30 \\ 3x + 3 < 30 \\ 3x < 27 \\ x < 9`
The greatest age could be 8