The average of 11 numbers is 50. If the average of first 6 numbers is 49 and that of last 6 is 52.Find the 6th number.	Choose the correct choice from the following options:  A) 54  B) 55  C) 56  D) 57  E) 58
avg = 50 so total sum of 11 numbers = 550   let 6th number is x, so according to the given condition   sum of first 5 numbers = 49*6 - x = 294 - x   sum of last 5 numbers = 52*6 - x = 312 - x   so 6th number x = 550 - (294 - x) - (312 - x) = 2x - 56   so x = 2x - 56 implies x = 56   ANSWER:56
<result>C</result>
The average of 11 numbers is 50. If the average of first 6 numbers is 49 and that of last 6 is 52.Find the 6th number.