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?
2 answers:
The oldest son is 30 years old.
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
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