60 blue marbles and 40 red marbles are in a jar. How many red marbles must be...
Question:
60 blue marbles and 40 red marbles are in a jar. How many red marbles must be removed from the jar so that the probability of choosing a blue marble from the jar is 3/4?
A. 5
B. 10
C. 15
D. 20
E. 25
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McGraw Hills Conquering SAT Math
ISBN: 9780071493413
2nd Edition
Authors: Robert Postman, Ryan Postman
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