एक कमरे की लम्बाई 15 मीटर 17 सेंटीमीटर तथा चौड़ाई 9 मीटर 2 संतीमेटेर हे कमरे के अंदर बनी छत पर कम से कम कितनी वर्गाकार टाइल्स लगेगी
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1517*902=1368334cm2=136.8334m2
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814 tiles As first we take Hcf of 1517 and 902 which is 41.soo as area of room is 1515*902.Area of tile is 41*41.
No of tiles is Area of room/Area of tile
841
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