<human>:  Mike bought 5 face masks while Johnny bought 2 more than thrice as many as Mike. How many face masks did Johnny buy?
<bot>: How many face masks did Mike buy? ** Thrice as many as Mike's face masks is 5 x 3 = <<5*3=15>>15.
How many face masks did Johnny buy? ** So, Johnny bought 15 + 2 = <<15+2=17>>17 face masks.
#### 17