The following exercises involve equations relating x and y and your task is to find the ratio x : y.[br]Input the values of x and y using the blue keyboard buttons.[br]Work your solutions on a piece of paper before you key in your answer![br][br]There are 5 levels of difficulty.[br]If you get 4 questions right for each level you will proceed on to the next level.[br]See if you can complete all five levels, ie. 20 correct questions in as little number of questions generated as possible.