# Pool tiles

The pool is 25m long, 10m wide and 160cm deep. How many m2 of tiles will be needed on the walls and the pool? How many pieces of tile are needed when 1 tile has a square shape with a 20cm side? How much does it cost when 1m2 of tiles costs 258 Kc?

Result

x =  9050
y =  93396 Kc

#### Solution:

$a=25 \ \text{m} \ \\ b=10 \ \text{m} \ \\ c=160/100=\dfrac{ 8 }{ 5 }=1.6 \ \text{m} \ \\ \ \\ S=a \cdot \ b + c \cdot \ 2 \cdot \ (a+b)=25 \cdot \ 10 + 1.6 \cdot \ 2 \cdot \ (25+10)=362 \ \text{m}^2 \ \\ d=20/100=\dfrac{ 1 }{ 5 }=0.2 \ \text{m} \ \\ S_{1}=d^2=0.2^2=\dfrac{ 1 }{ 25 }=0.04 \ \text{m}^2 \ \\ \ \\ x=S/S_{1}=362/0.04=9050$
$y=S \cdot \ 258=362 \cdot \ 258=93396 \ \text{Kc}$

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