GMAT Quant - Discrete Probability

Must solve GMAT practice questions in Discrete Probability. A couple of questions usually appear from discrete probability.

The categorization of the type of question and the concept tested are listed in the right column for each question. Detailed explanatory answers, solution videos and slide decks are also provided.

  • 1
  • If two distinct integers a and b are picked from {1, 2, 3, 4....100} and multiplied, what is the probability that the resulting number has EXACTLY 3 factors? A. 4/25*99
    B. 2/25*99
    C. 8/25*99
    D. 16/25*99
    E. 32/25*99

Solution