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CEMC Gauss (Grade 8), 2000

Algebra Difficulty 1.0 Junior Find the answer Canada

The coordinates of the vertices of rectangle $PQRS$ are given in the diagram: $S(3,12)$ , $R(p,12)$ , $P(3,2)$ , $Q(p,2)$ . The area of rectangle $PQRS$ is $120$ . The value of $p$ is

(A) $10$ (B) $12$ (C) $13$ (D) $14$ (E) $15$

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