Question

Each pair of plaster covers 97 square feet of ceiling. How many pails of plaster would you need to buy to cover the ceiling of a room with walls 14 feet long?

Answer 1

The first thing we must do for this case is find the area.
 "room with walls 14 feet long"
 Therefore, the area is given by:
 A = (14) * (14)
 A = 196 feet ^ 2
 Then, the number of pails of plaster are given by:
 n = 196/97
 n = 2.02
 Rounding off we have:
 n = 2
 Answer:
 you would need to buy 2 pails of plaster to cover the ceiling of a room with walls 14 feet long