GMAT Practice Question Set #39 (Question 115-117)

Problem Solving Question #115: Double Triangle  
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In the figure to the right, the sum of the measures of angles PQR and PRQ is 150 degrees. How many degrees greater is the measure of angle PRS than the measure of angle PQR?

(A)

20

(B)

30

(C)

40

(D)

50

(E)

60

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