GMAT Hard Math Questions | Probability

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

1. 700 800 Level GMAT Sample Question | Probability

   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?

   1. $\frac{4}{25 \times 99}$
   2. $\frac{2}{25 \times 99}$
   3. $\frac{8}{25 \times 99}$
   4. $\frac{16}{25 \times 99}$
   5. $\frac{32}{25 \times 99}$

   Correct AnswerChoice B
   2/(25 × 99)

   Solution Video Solution

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