Heath spent his weekend helping at his uncle’s farm planting carrots. He planted 400 rows of carrots with 300 plants in each row. He used a machine to get the planting done and it took him 20 hours. How many carrots did he plant each hour?
Heath planted 400 rows x 300 plants = <<400*300=120000>>120,000 carrot plants.
He planted 120,000 plants in 20 hours, or 120,000 / 20 = <<120000/20=6000>>6,000 plants per hour.
#### 6,000