Question 16
There are lily pads in a row numbered $0$ to $11,$ in that order. There are predators on lily pads $3$ and $6,$ and a morsel of food on lily pad $10.$ Fiona the frog starts on pad $0,$ and from any given lily pad, has a $\dfrac12$ chance to hop to the next pad, and an equal chance to jump $2$ pads. What is the probability that Fiona reaches pad $10$ without landing on either pad $3$ or pad $6?$