About the word "age"<br/><br/><br/><br/>1) She designs clothes for children and young people ages 10 to 20.<br/><br/>2) She designs clothes for children and young people aged 10 to 20.<br/><br/>3) She designs clothes for children and young people aging 10 to 20.<br/><br/><br/><br/>Sentence 1) and 2)are correct, right? <br/><br/>How about sentence 3), is it used?