Dimensions 3408

The room has dimensions of 4m, 5m, and 2.4m. 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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