Rectangular hall will have pave by square tiles with a side length 15 cm. The hall has length 18 meters and width 3 m. How many tiles need to buy if 2 percent of the amount is disrupted during the work?

Correct result:

n =  2448


S1=0.152=0.0225 S2=18 3=54 S3=1.02 S2=1.02 54=137725=55.08 n1=S3/S1=55.08/0.0225=2448 n=n1=2448=2448

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