human
John paints a giant mural that is 6m by 3m. The paint costs $4 per square meter. The artist can paint 1.5 square meters per hour and charges $10 per hour. How much does the mural cost?
assistant
How many square meters is the mural? ** The mural is 6*3=<<6*3=18>>18 sq meters
How much does the paint cost? ** So the paint cost 18*4=$<<18*4=72>>72
How many hours does the artist work? ** The artist works for 18/1.5=<<18/1.5=12>>12 hours
How much does the artist charge? ** He charges 12*10=$<<12*10=120>>120
How much does the mural cost? ** So the total cost is 120+72=$<<120+72=192>>192
#### 192