Lars leaves the lab

Here's a description of the contestant's attempt. Someone's probably working on collecting some images to illustrate it.

Lars counts the balloons so he can figure out how much time they might account for. He inflates some, but not all, of the balloons, and leaves the room after what he estimates as 2 minutes, apparently confident that he has judged it correctly. In the studio, Olli reveals that he left the lab after 2 minutes and 10 seconds, and left 10 of the balloons un-burst (adding 5 minutes), so had a total time of 7 minutes and 10 seconds. Lars therefore wins the task.

(Written by Karl Craven)