A rectangular courtyard is 3m 78cm long and 5m 25cm broard. It is desired to pave it with sqare tiles of the of the same size . What is the largest size of the rile than can be used ?Also find the numbers of such tiles.
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find the area of the area of courtyard
3M 78 CM x 5 m 25 CM
= 9M
side of largest tile = HCF of 378 (3m+78cm) and 525(5m+25cm)
=21
No. of tiles =( area of floor ÷ 4 )
900÷4
=450 tiles
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