THIS MONTH'S QUIZ
1. Seven gadgets and five widgets together cost thirty seven denarii, while seven widgets and five gadgets cost thirty five denarii. What does one widget cost?
2. The average age of Tom, Dick, Harry and Fred is 37. The average of Tom, Dick and Harry is 40, while the average of Dick, Harry and Fred is 32. What is the average of Dick and Harry?
3. Wally is always late for work. He can save 36 seconds if, instead of standing on the steps of the escalator, he walks up them, taking 1 step per second. Alternatively he can save 45 seconds by running up them at 2 steps per second. How many of the escalator's steps are visible at any one time?