The average (arithmetic mean) of four numbers is 50. Two of the numbers are 30 and 60.

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The average (arithmetic mean) of four numbers is 50. Two of the numbers are 30 and 60. What is the average of the other two numbers?

A. 70

B. 65

C. 60

D. 55

E. 50

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McGraw Hills Conquering SAT Math

ISBN: 9780071493413

2nd Edition

Authors: Robert Postman, Ryan Postman

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