human
Nina has two pairs of shoes. She bought one of them for $22, and the second one was 50% more expensive. How much did Nina pay for both pairs of shoes?
assistant
How much more expensive was the second pair of shoes? ** The second pair of shoes was 50/100 * 22 = $<<50/100*22=11>>11 more expensive.
How much did the second pair of shoes cost? ** That means that the second pair's price was 22 + 11 = $<<22+11=33>>33.
How much did Nina pay for both pairs of shoes? ** So for both pairs of shoes, Nina paid 33 + 22 = $<<33+22=55>>55.
#### 55