The average of five numbers is 18. The average of first two numbers is 14 and the average of last two numbers is 19. What is the middle number?
Answers:	A) 24	B) 27	C) 29	D) 32	E) 34
The total of seven numbers = 5X18 = 90   The total of first 2 and last 2 numbers is = 2 X 14+2 X 19 = 66   So, the middle number is  (90 - 66 )= 
<gadget id="calculator"> (90 - 66 )</gadget>
<output>24</output>
24   24
<result>A</result>
The average of five numbers is 18. The average of first two numbers is 14 and the average of last two numbers is 19. What is the middle number?