<human>:  A taco truck buys 100 pounds of beef. They use .25 pounds of beef per taco. If they sell each taco for $2 and each taco takes $1.5 to make how much profit did they make if they used all the beef?
<bot>: How many tacos did they make? ** They made 100/.25=<<100/.25=400>>400 tacos
How much profit does each taco give? ** Each taco gives a profit of 2-1.5=$<<2-1.5=.5>>.5
How much profit did they make? ** So they made a profit of 400*.5=$<<400*.5=200>>200
#### 200