10 people can paint a building in 5 days. If each person paints as quickly as the others then how much of the building could 7 people paint in 5 days?

10 people can paint a building in 5 days. Each person paints $5186_w18_h38.png$ of the building in 5 days. In 5 days 7 people would paint $7180_w51_h38.png$ of the building In 5 days 7 people would paint $9396_w18_h39.png$ of the building.