My best friend is Tue Nhi. She lives in Yen Lang commune. She is very beautiful. She is tall and slim. She has black eyes and long hair. She is kind, because she always helps her classmates. At the weekend, she usually goes shopping with her mom. In the evening, she and her family have dinner and watch TV. She would like to be a music teacher because she'd like to teach children.

My best friend is Tue Nhi. She lives in Yen Lang commune. She is very beautiful. She is tall and slim. She has black eyes and long hair. She is kind because she always helps her classmates. At the weekend, she usually goes shopping with her mom. In the evening, she and her family have dinner and watch TV. She would like to be a music teacher because she'd like to teach children. She is my best friend.

Hiệu tuổi hai cha con là: 15 : 3/8 = 40 ( tuổi ) Tuổi con hiện nay là: 40 x 1/8 = 5 ( tuổi ) Tuổi bố hiện nay là: 5 + 40 = 45 ( tuổi ) Đáp số: - Con: 5 tuổi - Bố: 45 tuổi

1+1=3