The sum of the first 50 positive even integers is 2550. What is the sum of the even integers from 302 to 400 inclusive?  Choose the correct choice from the following answers
A) 11,550  B) 14,550  C) 17,550  D) 20,550  E) 23,550

Rationale: "2 + 4 + 6 + 8 + . . . + 100 = 2550 302 + 304 + . . . + 400 = 50 ( 300 ) + ( 2 + 4 + . . . + 100 ) = 15,000 + 2550 = 17,550 the answer is c ."
Answer: C