This series is all about maths, something I rather enjoy, and will take you on a journey around Matarawa.
** You will be driving/biking/riding across train tracks. These are uncontrolled. Please take care and look each way thoroughly before you cross. **
** The roads are narrow and the locals can speed along them. There is room to park at each cache but take care if you need to cross the road. **
The last maths problem -for a wee while me thinks.
(k + 6)(k + 5) = 240
What is k?
Answer in Certitude please.
Enjoy.

You can validate your puzzle solution with certitude.