The rectangular pavilion with dimensions of 3.5 m and 2.75 m is to be paved with square tiles of side 25 cm, price of CZK 22 per 1 piece or rectangular tiles with sides of 20 cm and 15 cm in the price of CZK 11 per 1 pc. Which solution is cheaper (write its price)?

Correct answer:

x =  3388

Step-by-step explanation:

S=3.5 2.75=9.625 m2 a=25 cm m=25:100  m=0.25 m x=20 cm m=20:100  m=3388 m y=15 cm m=15:100  m=0.15 m  S1=a2=0.252=161=0.0625 m2 S2=x y=3388 0.15=1003=0.03 m2  n1=[S/S1]=[9.625/0.0625]=154 n2=[S/S2]=[9.625/0.03]=321  c1=22 n1=22 154=3388 Kc c2=11 n2=11 321=3531 Kc  c1<c2  x=c1=3388=3388 Kc

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