+5 A test has 12 problems, and each problem is worth 5 marks. Full marks are given for a correct answer, 2 marks are given if there is no answer, and no marks are given for an incorrect answer. Some scores between 1 and 60 (don't include 1 and 60), are impossible to get on this test. What is the sum of these impossible scores?
+129849 Using brute force....here's what I get :
Possible Scores
2, 4, 5, 6, 7, 8, 9 , 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22 23, 24, 25, 26, 27, 28, 29,
30 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 54,
55, 57
So....the impossible scores are
3, 53, 56, 58, 59
And their sum is 229
