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1995 AMC 8 Question 12

AMC8 · 1995 AMC 8

Question 12

A *lucky* year is one in which at least one date, when written in the form month/day/year, has the following property: the product of the month times the day equals the last two digits of the year. For example, $1956$ is a lucky year because it has the date $7/8/56$ and $7 \times 8 = 56.$ Which of the following is NOT a lucky year?
  1. $1990$
  2. $1991$
  3. $1992$
  4. $1993$
  5. $1994$