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1987 AMC 12 Question 26

AMC12 · 1987 AMC 12

Question 26

The amount $2.5$ is split into two nonnegative real numbers uniformly at random, for instance, into $2.143$ and $0.357,$ or into $\sqrt3$ and $2.5-\sqrt3.$ Then each number is rounded to its nearest integer, for instance, $2$ and $0$ in the first case above, $2$ and $1$ in the second. What is the probability that the two integers sum to $3?$
  1. $\frac14$
  2. $\frac25$
  3. $\frac12$
  4. $\frac35$
  5. $\frac34$