Later today I am giving a public talk at the University of Hertfordshire about the paranormal on film….and it is free! Hope you can make it – detailshere.
On Friday I posted this puzzle….
I have decided to hold a Mouse Clicking Competition. So far, there are only three entrants – John, James and Jack. John can click a mouse 10 times in 10 seconds. James can click a mouse 20 times in 20 seconds. Jack can click a mouse 5 times in 5 seconds. In my competition, the timing period begins with the first mouse click and ends with the final click. Which one of these entrants would be the first to complete 40 clicks?
If you have not tried to solve it, have a go now. For everyone else, the answer is after the break.
James wins. Making 10 clicks involves 9 pauses, and so John’s time per click is 10/9 (1.1 seconds). Similarly, the time per click for James is 20/19 (1.05 seconds) and for Jack it is 5/4 (1.25 seconds). Thus James is the quickest.
UPDATE: The original answer posted was not entirely correct.
Did you solve it?
I have produced an ebook containing 101 of the previous Friday Puzzles! It is called PUZZLED and is available for theKindle (UK here and USA here) and on the iBookstore (UK here in the USAhere). You can try 101 of the puzzles for free here.