We have to answer how many gallons of paint are used to paint each chair and between what 2 whole numbers does answer lie. We know that 4 gallons of paint are used to paint 25 chairs. For one chair: 4 : 25 = 0.16 gallons. 0 < 016 < 1. Answer: 0.16 gallons is used and it is between 0 and 1.