Each pail of plaster covers 90 square feet of ceiling. What is the least number of pails of plaster you would need to buy to cover the ceiling of a room with walls 14 feet long?…

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asked Jul 17, 2017 123k views

2 Answers

Tristantzara · Answer 1 · 2017-07-22T15:59:33+0000

The area of the ceiling:
A = 14² = 196 ft²
We need plaster to cover 196 ft².
196 : 90 = 2.17778
Answer: We have to buy 3 pails of plaster.