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Find the least number of square tiles required to pave the floor of a room 15m17cm long and 9m2cm broad.

Posted by Tamanna Choudhary 6 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Ram Kushwah 6 years, 7 months ago

length=15 m 17 cm=1517 cm

breadth 9 m 2 cm=902 cm

Now 1517 =41*37

and 902=41*22

SO HCF(1517,902)=41

hence 41 can divide 1517 and 902 exactly

so Side of tile=41 cm

area=41*41=1681 cm²

So number of tiles

=1517*902/1681

=1368334/1681

=814 tiles

1Thank You

ANSWER

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CBSE > Class 10 > Mathematics