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MathNet 2015-part-06 — 191 problems (EN–VI) Question 29

Math Olympiad Vault · MathNet 2015-part-06 — 191 problems (EN–VI)

Question 29

The number of different positive integers such that $\frac{n}{n+4} \lt \frac{4}{9}$ is
(A) 0
(B) 1
(C) 2
(D) 3
(E) 4