The sum of five numbers is 100. The average of the first two numbers is 10 and the third number is 30. Find the average of the two numbers?
Choose the correct option.
A) 25	B) 20	C) 23	D) 22	E) 30
Let the five numbers be P, Q, R, S and T.   =&gt; P + Q + R + S + T = 100   (P + Q)/2 = 10 and R = 30   P + Q = 20 and R = 30   P + Q + R = 50   S + T = 100 - (P + Q + R) = 50   25verage of the last two numbers   = (S + T)/2 = 25   25nswer:25
<result>A</result>
The sum of five numbers is 100. The average of the first two numbers is 10 and the third number is 30. Find the average of the two numbers?