I wouldn't practice anymore questions if I were you. You're getting the same amount that I was getting correct at the beginning and end of my studies which is why I didn't study much after the first week or so.



5 positive even integers , average is 300. so you have 4 numbers that are 2,4,6,8 = 20. 5th would equal 300-20 = 280. Zero is not positive. so if you have 292 , that would mean you have 300-292 = 8.. 8 divided by 4 would be average of 2 but you can't go lower than 2, so 292 isn't correct. no idea where they get those answers from, some of the books are just plain wrong.



I'll have to read that paper some other time, it won't load here at work.