So, I have recently written a school assignment in English and I was wondering what's the correct way to say:
- In the beginning of the 19th century, one-third of the millworkers aged from seven to twelve.
- In the beginning of the 19th century, one-third of the millworkers were between the age of seven and twelve.
- In the beginning of the 19th century, one-third of the millworkers were between seven and twelve.
My teacher doesn't approve of the first example that I have listed.