Payne can paint 100 square feet per hour. How many hours will it take Payne to paint both sides of a rectangular wall 125 feet long by 6 feet high?
[125 * 6 ] * 2 /100 =
125 * 12 /100 =
1500 / 100 =
15 hrs
(125 ft x 6 ft ) x 2 / 100 ft2/hr = 1500 ft2 / 100 ft2/hr = 15 hr
+36916 
