The sum of five numbers is 400. The average of the first two numbers is 50 and the third number is 60. Find the average of the two numbers?  Options:
A) 70 B) 65 C) 85 D) 80 E) 90
Let the five numbers be P, Q, R, S and T.   =&gt; P + Q + R + S + T = 400   (P + Q)/2 = 50 and R = 60   P + Q = 100 and R = 60   P + Q + R = 160   S + T = 400 - (P + Q + R) = 240   Average of the last two numbers   = (S + T)/2 = 80   Answer:80
<result>D</result>
The sum of five numbers is 400. The average of the first two numbers is 50 and the third number is 60. Find the average of the two numbers?