It takes 5 hours to paint every bedroom in a condominium compound. There are 60 bedrooms in every building. How long will it take to paint all the bedrooms if there are similar 4 buildings in the compound?

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.