Kat is painting the four walls of her bedroom. She paints 52 square feet in 2/3 of an hour. How many square feet does she paint per hour?
78 sq. ft
★ 2/3 of an hour ⤏ 2/3 x 60 = 40 minutes
★ An hour ⤏ 60 minutes
Hence , kat can paint 78 sq. ft in an hour