Problem: two tests had the same maximum mark . the pass percentages in the first and the second test were 40 % and 45 % respectively . a candidate scored 249 marks in the second test and failed by 66 marks in that test . find the pass mark in the first test ?
Rationale: "let the maximum mark in each test be m . the candidate failed by 66 marks in the second test . pass mark in the second test = 249 + 66 = 315 45 / 100 m = 315 pass mark in the first test = 40 / 100 m = 40 / 45 * 315 = 280 . answer : d"
annotated_formula: add(249, 66)