Tiles

Hall has dimensions 250 × 200 dm. What is the largest size of square tiles that can be entire hall tiled, and how many do we need them?

Correct answer:

x =  50 dm
y =  50 dm
n =  20

Step-by-step explanation:

A=250 dm B=200 dm 250=253 200=2352 GCD(250,200)=252=50  x=GCD(A,B)=GCD(250,200)=50 dm
y=x=50=50 dm
S1=A B=250 200=50000 dm2 S2=x y=50 50=2500 dm2  n=S1/S2=50000/2500=20



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