Problem: the average ( arithmetic mean ) of 20 , 40 , and 60 is 6 more than the average of 10 , 70 , and what number ?
Rationale: "a 1 = 120 / 3 = 40 a 2 = a 1 - 6 = 34 sum of second list = 34 * 3 = 102 therefore the number = 102 - 80 = 22 answer : d"
annotated_formula: subtract(add(add(20, 40), 60), add(add(multiply(6, const_3), 10), 70))