contestada

Bobby,Billy, and Barry smith are each one year apart in age. The sum of their ages is greater than the age of their father , who is 60. How old the oldest brother can be?

Respuesta :

The oldest son is 30 years old.
texaschic101
x + x + 1 + x + 2 > 60
3x + 3 > 60
3x > 57
x > 57/3
x > 19

x + 1 = 19 + 1 = 20
x + 2 = 19 + 2 = 21

oldest brother can be at least 21