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SMO 2026 Senior Round 1 Question 1

SMO · SMO 2026 Senior Round 1

Question 1

Suppose that a fair four-sided die (with faces labelled $1,2,3,4$) is rolled twice, producing outcomes $b$ and $c$ in that order. Let $p$ be the probability that the quadratic equation $x^2+bx+c=0$ has two real and distinct roots. Find the value of $\left\lceil\frac1p\right\rceil$.
  1. 3
  2. 4
  3. 7
  4. 9
  5. 10