Question

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?

Answer 1

0.7 building

Explanation:

The allowed time is the same, so we expect the amount of building to be proportional to the number of people working. If 7/10 of the workforce is present, we expect 7/10 of the building to be painted.