Claire is 15 years old today. This is 5 times as old as her sister margaret was when claire was the age that margaret is today. How old is margaret today?

Answer 1

Margaret is 3

(Intentionally confusing-worded question.
"This is 5 times as old as her sister margaret was when claire was the age that margaret is today."
= This is 5 times as old as her sister margaret is today. )