<human>:  Jen and Tyler are gymnasts practicing flips. Jen is practicing the triple-flip while Tyler is practicing the double-flip. Jen did sixteen triple-flips during practice. Tyler flipped in the air half the number of times Jen did. How many double-flips did Tyler do?
<bot>: How many flips did Jen do? ** Jen did 16 triple-flips, so she did 16 * 3 = <<16*3=48>>48 flips.
How many flips did Tyler do? ** Tyler did half the number of flips, so he did 48 / 2 = <<48/2=24>>24 flips.
How many double-flips did Tyler do? ** A double flip has two flips, so Tyler did 24 / 2 = <<24/2=12>>12 double-flips.
#### 12