Painting

To paint the pool with dimensions: 2 meters depth, 3m x 4m we bought paint to 50 meters square. How many "paint" will be a waste?

Correct result:

x =  10 m2

Solution:

S1=50 S2=3 4+2 (3+4) 2=40 x=S1S2=5040=10 m2



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