Question

Which of the following is a subset of the set
A: {men between the ages of 20 and 30}

1. {men between the ages of 25 and 30}

2. {a 40 year old man}

3. {adults between the ages of 20 and 25}

4. {men over 30}

Answer 1

1. {men between the ages of 25 and 30}