Answer: Felicia is 8.
Explanation: her brother had to be at least 1 two years ago. so if he were 1, felicia would be 3 (bc she’s 3 times as old) two years ago. now, she would be 5 and her brother would be 3. because this she is not twice as old, we know this is not the answer.
so if her brother were 2 two years ago, felicia would be 6 years old. now, she would be 8 and her brother would be 4 (bc we added two years). this is the correct answer because 8 is twice of 4.
hope this helped!