Elaine was in the pool for 2*3=<<2*3=6>>6 minutes.
George was in the pool for 6/3=<<6/3=2>>2 minutes.
Kramer never found the pool and thus swam for 0 minutes.
In total, Jerry and his friend were in the cold water for 3+6+2+0=<<3+6+2+0=11>>11 minutes.
#### 11