Three girls are talking about their ages.

Ashley: I am 12 years old, 3 years Stella’s junior but 1 year older than Melanie

Stella: I am not the youngest. Melanie and I are 4 years apart. Ashley is 11 years old.

Melanie: I am younger than Ashley. She is 10 years old. Stella is 2 years her senior.

One of the above three statements made by each girl is incorrect.

Help them to unscramble this age puzzle.