The average of 11numbers is 500. Out of 11numbers the average of first 6no. is 50, and last 6numbers is 60 then find 6th number?
Answers:
A) 95 B) 80 C) 110 D) 120 E) 72
6th number = sum of 1st 6no.s + sum of last 6no.s - sum of 11no.s   answer = 6*50+6*60-11*50= 
<gadget id="calculator">6*50+6*60-11*50</gadget>
<output>110</output>
110   Answer is 110
<result>C</result>
The average of 11numbers is 500. Out of 11numbers the average of first 6no. is 50, and last 6numbers is 60 then find 6th number?