GRE Math Quantitative Comparisons Question 178
In a bowl that contains 20 marbles，7 are green，6 are red，and the remainder are blue.Two marbles are to be drawn at random from the bowl without replacement.
The probability that one marble is green and the other marble is red
The probability that one marble is green and the other marble is blue
- A Quantity A is greater.
- B Quantity B is greater.
- C The two quantities are equal.
- D The relationship cannot be determined from the information given.
Correct Answer: B