human
Tas and his friends put up a t-shirt for sale. They ended up selling 200 t-shirts in 25 minutes. Half of the shirts were black and cost $30, while the other half were white and cost $25. How much money did they make per minute during the sale?
assistant
How much money did the black shirts make? ** The total revenue from black shirts was 100 * $30 = $<<100*30=3000>>3000.
How much money did the white shirts make? ** The total revenue from white shirts was 100 * $25 = $<<100*25=2500>>2500.
How much money did they make? ** The total revenue from all shirts sold was $3000 + $2500 = $<<3000+2500=5500>>5500.
How much money did they make per minute during the sale? ** Tas and his friends ended up making $5500 / 25 minutes = $220 per minute.
#### 220