Question

10 people can paint a building in 5 days. If 7 people are working at the same pace how much of the building could 7 people paint in 5 days?

Answer 1

If it takes 10 people 5 days to complete 100% of the painting, 7 people would paint 70% of the building in 5 days. We can find this using the unit rate. We see that 1 person paints 10% of the building in 5 days, so 7 people paint 70% in 5 days.