When Jane was just eight years old she developed a bit of a crush on Jim. Jim was eighteen and decided to make a promise to Jane. He carved a heart into a nearby cherry tree and placed his initials inside the heart. The heart was out of Jane’s reach by 16 centimetres. Jim promised to marry Jane when she was tall enough to carve her initials next to his. Jane’s reach increased by 8 centimetres a year, but the tree was growing by 7 centimetres each year.
How old was Jane when she could ask Jim to keep his promise?
As ever, please do NOT post your answers, but do say if you think you have solved the puzzle and how long it took. Solution on Monday.
I have produced an ebook containing 101 of the previous Friday Puzzles! It is called PUZZLED and is available for the Kindle (UK here and USA here) and on the iBookstore (UK here in the USA here). You can try 101 of the puzzles for free here.