The average (arithmetic mean) of 4 positive integers is 30. If the average of 2 of these integers is 15, what is the greatest possible value that one of the other 2 integers can have? Pick:
A) 55
B) 89
C) 100
D) 109
E) 115
a + b + c + d = 120   a + b = 30   c + d = 90   Greatest possible = 89 (Just less than 1)   Answer = 89
<result>B</result>
The average (arithmetic mean) of 4 positive integers is 30. If the average of 2 of these integers is 15, what is the greatest possible value that one of the other 2 integers can have?