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A rectangular courtyard is 18m 72cm long and 13m 20cm broad.It is to be paved with square tiles of the same size.Find the least possible number of such tiles.
HCF of 1872 and 1320 is 24.
So the side of the required square tile is 24cm.
No.of such square tile required to pave the courtyard
 = area of courtyard / area of one tile
 =(1872 x 1320) /(24 x 24)
 =4290


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