1966 AHSME Problems/Problem 13

Problem

The number of points with positive rational coordinates selected from the set of points in the $xy$ -plane such that $x+y \le 5$ , is:

$\text{(A)} \ 9 \qquad \text{(B)} \ 10 \qquad \text{(C)} \ 14 \qquad \text{(D)} \ 15 \qquad \text{(E) infinite}$

1966 AHSME (Problems • Answer Key • Resources)
Preceded by Problem 12	Followed by Problem 14
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