John found that the average of 15 numbers is 40. If 11 is added to each number then the mean of number is?
Choose the correct option:
A) 51 B) 45 C) 65 D) 78 E) 64
(x+x1+...x14)/15 = 40   51   Option 51
<result>A</result>
John found that the average of 15 numbers is 40. If 11 is added to each number then the mean of number is?