GMAT Practice Question Set #2 (Question 4-6)

Problem Solving Question #5: Red Striped Golf Balls  
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There are 1,200 golf balls in a golf ball dispensing machine. The probability that the ball has a red
stripe is 1/9th the probability that the golf ball has no stripe. How many of the golf balls in the
dispensing machine have a red stripe?

(A)

108

(B)

120

(C)

150

(D)

251

(E)

320

Video Explanation

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