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MathNet 2018-part-07 — 177 problems (EN–VI) Question 88

Math Olympiad Vault · MathNet 2018-part-07 — 177 problems (EN–VI)

Question 88

Suppose there are 100 cookies arranged in a circle, and 53 of them are chocolate chip, with the remainder being oatmeal. Pearl wants to choose a contiguous subsegment of exactly 67 cookies and wants this subsegment to have exactly $k$ chocolate chip cookies. Find the sum of the $k$ for which Pearl is guaranteed to succeed regardless of how the cookies are arranged.