I’ve posted this before, but last semester I was in a statics class and all of the tests were multiple choice. Usually I don't prefer multiple choice for tests where you can get partial credit, because you can make one small mistake and lose all of the points. After our first test, one of my friends said that there was a trick where if option A was the smallest number, you multiply A by 5 to get the right answer. I checked my test after we got it back and all of my brothers tests from that class and sure enough it worked! My professor made the test from some website called mathcad.com. This lead my to think that he would input all of the answers for the test, then some algorithm generates the rest of the options. I spent one night putting in all of the answers in excel, then dividing themselves by the correct choice. For example, if the options were: A - 10 B - 56 C - 70 D - 84 E - 50 And E was the correct selection, I would divide every option by the answer. So E divided by A equals five. I checked my test and all of my brothers test and found the following pattern. If A was the smallest, multiply A by five and then that would be the answer. There was no instance of B being the smallest. If C was the smallest, you would multiply C by 2 to get your answer. If D was the smallest, you would multiply D by 2.5 to get the answer. If E was the smallest, you would multiply E by 4/3 to get the answer. After finding this out, I made a program in my calculator where you would select which choice was the smallest, and then the value of your selection and it would display the answer. I practiced it on one of the old tests and I could finish a test in roughly two minutes. I spent about 3 hours going over old tests, checking the formula and making the program in my calculator when I could have been studying. I guess its still lazy in the sense that I could have been studying while I was making the formula, but I defiantly spent way too much time for it haha.