
#62 Burger run
Three friends agree to drive from A to B via the shortest road route possible (driving down or right at all times). They are hungry, so also want to drive through a Big Burger restaurant, marked in red. They are arguing about how many shortest routes will pass through exactly one Big Burger. Xenia: “I reckon there are 10.” Yolanda: “I’d say more like 20.” Zara: “No you’re both wrong, I bet there’s more than 50.” Who is right, or closest to right?
Answer next week
61 Triple Jump
Solution
Let us call the mother’s age…


