1."You know the one about the two ladders and the walls on opposite sides of a lane?" asked Joe. "Each ladder went from the foot of one wall to somewhere up the other wall." Don smiled. "Yes. We were told the lengths of the ladders, and the height of where they crossed. Why?" "I just worked out a similar puzzle, with kalotan measurements," replied Joe. "One ladder 119 kells long. The top of the other ladder is 42 kells up the wall, and they cross at a height of 30 kells. You have to get the length of the other ladder." You try!

Other ladder 81 kells long

Other ladder 70 kells long

Other ladder 57 kells long