There were 40 kids on Lake Pleasant. A fourth of the kids went tubing, but only half of the tubers went rafting. How many of the kids who joined the rafting excursion were also on the tubing excursion?
##Solution## 40/4 = <<40/4=10>>10 kids went tubing.
10/2 = <<10/2=5>>5 kids went rafting and tubing.
#### 5