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GRE Quantitative Reasoning QUESTION #70
Question 1

A box contains 5 red, 3 blue, and 2 green balls. Two balls are drawn at random without replacement.

  • 1/5
  • 7/15
  • 17/45✔️
  • 8/15
Correct Answer Explanation

Total balls = 10

Use complement method:

P(at least one green)

= 1 − P(no green)

Balls without green = 8