<human>:  Angie bought three times as many pretzels at the mall as Shelly did. Shelly bought half as many pretzels as Barry. If Barry bought 12 pretzels, how many did Angie buy?
<bot>: How many pretzels did Shelly buy? ** Shelly bought 12/2=<<12/2=6>>6 pretzels
How many pretzels did Angie buy? ** Angie bought 6*3=<<6*3=18>>18 pretzels
#### 18