Problem
First name
Evie
School
Wycombe High School
Country
Age
0
firstly, number 1 and 2 cross the bridge and then number 2 walks back over the bridge. Number 10 and 7 cross and give the torch to number 1 who is waiting on the other side alone. Then number 1 walks back over and 1 and 2 takes the torch back over. Finally, you have all 4 people over the bridge in 17 minutes.