if x is equal to the sum of the integers from 40 to 60 , inclusive , and y is the number of even integers from 40 to 60 , inclusive , what is the value of x + y ?
"x = 40 + 41 + . . . + 60 = 21 ( 50 ) = 1050 y = 11 x + y = 1061 the answer is c ."
add(multiply(divide(add(40, 60), const_2), add(subtract(60, 40), const_1)), add(divide(subtract(60, 40), const_2), const_1))