The average of 11numbers is 60. Out of 11numbers the average of first 6no. is 78, and last 6numbers is 75 then find 6th number?	Choose one.
A) A)258  B) B)65  C) C)58  D) D)62  E) E)48
6th number = sum of 1st 6no.s + sum of last 6no.s - sum of 11no.s   answer = 6*78+6*75-11*60= 
<gadget id="calculator">6*78+6*75-11*60</gadget>
<output>258</output>
258   258nswer is 258
<result>A</result>
The average of 11numbers is 60. Out of 11numbers the average of first 6no. is 78, and last 6numbers is 75 then find 6th number?