Skip to content / Đến nội dung
ThichHocToan.com

IKMC 2008 - Grades 9-10 - Self-study Question 30

IKMC · IKMC 2008 - Grades 9-10 - Self-study

Question 30

How many 2007-digit numbers have every adjacent two-digit number divisible by 17 or 23?
  1. 5
  2. 6
  3. 7
  4. 9
  5. More than 9