easy · GMAT Quant

A property manager has keys tagged with the integers from 1 to 18, one key for each integer. Exactly two of the keys will be selected, and the order of selection does not matter.

How many different selections of the two keys have the property that at least one of their numbers is a multiple of 5?

  1. 48
  2. 62
  3. 96
  4. 105
  5. 153

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