the sum of the first 50 positive even integers is 2550 . what is the sum of the even integers from 302 to 400 inclusive ?
"2 + 4 + 6 + 8 + . . . + 100 = 2550 302 + 304 + . . . + 400 = 50 ( 300 ) + ( 2 + 4 + . . . + 100 ) = 15,000 + 2550 = 17,550 the answer is c ."
multiply(divide(add(400, 302), const_2), add(divide(subtract(400, 302), const_2), const_1))