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1975 AMC 12 Question 18

AMC12 · 1975 AMC 12

Question 18

A positive integer $N$ with three digits in its base ten representation is chosen at random, with each three-digit number having an equal chance of being chosen. The probability that $\log_2N$ is an integer is
  1. $0$
  2. $\frac3{899}$
  3. $\frac1{225}$
  4. $\frac1{300}$
  5. $\frac1{450}$