<human>:  John decides to get the vaccine for COVID. He has to wait 20 minutes for the first dose. The second dose has a wait time half as long. How long was the total wait time?
<bot>: How long was the second dose? ** The second dose had a wait time of 20/2=<<20/2=10>>10 minutes
How long was the total wait time? ** So the total wait time is 20+10=<<20+10=30>>30 minutes
#### 30