If the average of 6 digits is 16 and the average of 4 of them is 10, calculate the average of the remaining 2 numbers?  Choose the correct answer
A) 36 B) 35 C) 28 D) 33 E) 21

Rationale: "explanation : total of the 6 digits - 6 * 16 = 96 total of the 4 digits - 4 * 10 = 40 total of the remaining 2 digits - 96 - 40 = 56 average of the remaining 2 numbers = 56 / 2 = 28 answer : c"
Answer: C