One of my two brothers is $$4$$ years older than the other. If they were the same age, they\textquotesingle d each be $$19$$. Thus, one is $$17$$ and the other is $$21$$. 
One of my two brothers is $$4$$ years older than the other. If the sum of their ages is $$38$$, the older brother isyears old. 
Options:
1. $$17$$ 
2. $$21$$ 
3. $$23$$ 
4. $$27$$ 
5. $$42$$ 