John found that the average of 15 numbers is 40. If 12 is added to each number then the mean of number is?	Choose the correct choice from the following options
A) 52 B) 45 C) 65 D) 78 E) 64
(x+x1+...x14)/15 = 40   52   Option 52
<result>A</result>
John found that the average of 15 numbers is 40. If 12 is added to each number then the mean of number is?