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?

The age of the oldest brother must be greater than 21 years

Step-by-step explanation:

Let

x, x+1 and x+2 -----> the ages of the brothers

we know that

The sum of their ages must be greater than 60

so

The inequality that represent this situation is

Solve for x

Combine like terms

Subtract 3 both sides

Divide by 3 both sides

so

if  

therefore

The age of the oldest brother must be greater than 21 years