Skip to content / Đến nội dung
ThichHocToan.com

HKIMO 2020 Grade 1 National Final (Heat) Set 01 Question 25

HKIMO · HKIMO 2020 Grade 1 National Final (Heat) Set 01

Question 25

Choose 2 digits, without repetition, from 0, 2, 3, 5 and 9 to form 2-digit even numbers. How many different number(s) is / are there?