Dimensions 3408

The room has 4m, 5m, and 2.4m dimensions. Suppose one can is enough to paint 10 m2. How many cans of paint are needed to paint the walls and ceiling of this room?

Correct answer:

n =  7

Step-by-step explanation:

a=4 m b=5 m h=2.4 m  S=a b+2 (a+b) h=4 5+2 (4+5) 2.4=5316=6351=63.2 m2 S1=10 m2  n=S/S1=63.2/10=7



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arithmeticsolid geometryplanimetricsUnits of physical quantitiesGrade of the word problem

 
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