Skip to content / Đến nội dung
ThichHocToan.com

MathNet 2022-part-03 — 197 problems (EN–VI) Question 189

Math Olympiad Vault · MathNet 2022-part-03 — 197 problems (EN–VI)

Question 189

Line up the numbers $1$ to $15$ such that if you add any two numbers that are next to each other, you get a square number.
What do you get if you add the first and last number from the line?