Riddle: When Thanh was 6 years old, he was twice the age of his younger sibling. So, when Thanh turns 60 years old, how old will his sibling be?

Buzz

Ngày cập nhật gần nhất: 1/5/2026

Mytour's content is for customer care and travel encouragement only, and we are not responsible.

For errors or inappropriate content, please contact us at: [email protected]