HKIMO 2020 Grade 6 National Final (Heat) Set 01 Question 25

Choose three distinct digits from 0 through 9 to form three-digit numbers. How many even numbers greater than 400 can be formed?

Source glossary (English–Vietnamese): Digit: chữ số; Even: chẵn; Greater than: lớn hơn; Repetition of digits is not allowed: các chữ số không được lặp lại.