how many rectangular tiles 10 cm by 7 cm will be required to cover a floor 14 long and 12.5 M broad and what will be the cost at rupees 70 per hundred tiles
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Ꮮᴇɴɢᴛʜ Oꜰ Pʟᴏᴛ ￫ 14 ᴍ
Bʀᴇᴀᴅᴛʜ Oꜰ ᴘʟᴏᴛ ￫ 12.5 ᴍ
ᴀʀᴇᴀ ᴏꜰ ʀᴇᴄᴛᴀɴɢʟᴇ = ʟ × ʙ
= 14 × 12.5
= 175ᴍ²
[1ᴍ = 100 ᴄᴍ ]
⟹ ʟᴇɴɢᴛʜ ᴏꜰ ᴛɪʟᴇꜱ = 10ᴄᴍ
= 0.1 ᴍ
⟹ ʙʀᴇᴀᴅᴛʜ ᴏꜰ ᴛɪʟᴇꜱ = 0.1 × 0.07
= 0.007ᴍ²
➸ ɴᴏ. ᴏꜰ ᴛɪʟᴇꜱ = ᴀʀᴇᴀ ᴏꜰ ᴘʟᴏᴛ / ᴀʀᴇᴀ ᴏꜰ ᴛɪʟᴇꜱ
= 175/0.007
= 25,000
➾ ᴛʜᴇʀᴇꜰᴏʀᴇ , 25,000 ᴛɪʟᴇꜱ ᴀʀᴇ ʀᴇQᴜɪʀᴇᴅ .
ᴄᴏꜱᴛ ᴘᴇʀ ʜᴜɴᴅʀᴇᴅ ᴛɪʟᴇꜱ
= 2500×70/100
= ₹ 17,500
ʜᴇɴᴄᴇ , ₹ 17,500 ɪꜱ ʀᴇQᴜɪʀᴇᴅ.
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