Problem: the average of 30 numbers is 25 . if each number is multiplied by 5 , find the new average ?
Rationale: "sum of the 30 numbers = 30 * 25 = 750 if each number is multiplied by 5 , the sum also gets multiplied by 5 and the average also gets multiplied by 5 . thus , the new average = 25 * 5 = 125 . answer : b"
annotated_formula: multiply(25, 5)