Sometimes i wonder, am i the only one who found it much easier to reverse engineer the required formula from given data, multiple choice response and the different but similar formula on the other question?
Once had my class turn against me because a very unskilled teacher wrote a question on the test of which we hadent seen the required formulas in class. But that couldn’t be said the teacher because i the kid who was known to not be able to pay attention to annything found the correct answer.