Average

Let the 12 numbers be . The average of these 12 numbers is 15. The sum of these 12 numbers is: $ and . Their average is 1(D) The sum of the first two numbers is: \) . There are remaining numbers. The sum of the remaining 10 numbers is the total sum minus the sum of the first two numbers: \) $ Therefore, the average of the remaining numbers is 15.(B)