Five doors with a width of 80 cm and a height of 2 m need to be sanded and wallpapered on both sides. One roll of wallpaper with wood decor measuring 80*1000cm costs CZK 66. How many roles will we need for the renovation?

Correct answer:

n =  2

Step-by-step explanation:

a=2 m b=1000 cm m=1000:100  m=10 m  k=5 2=10  n=k ba=10 102=1010 2=1020=2

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