Question

How many metre of carpet 75 cm wide will be required to cover the floor of a room which is 12 metre long and 8 metre wide

Answer 1

Solution :

{ We need to find the length of the carpet. }

Given that, the floor of the room is 12 m long and 8 m wide.

So, the area of the floor is

= length of the floor * width of the floor

= 12 * 8 m²

= 96 m²

= 96 * 100² cm²

= 960000 cm²

Thus, the length of the carpet

= $\frac{area\:of\:the\:floor}{width\:of\:the\:carpet}$

= $\frac{960000}{75}$ cm

= 12800 cm

= $\frac{12800}{100}$ m

= 128 m

Answer 2

ᴀʀᴇᴀ ᴏꜰ ᴛʜᴇ ꜰʟᴏᴏʀ = 12ᴍ × 8 ᴍ

= 96ᴍ²

⇒ 96 ᴍ × 100ᴄᴍ²

⇒960000ᴄᴍ²

⟾ ʟᴇɴɢᴛʜ ᴏꜰ ᴄᴀʀᴘᴇᴛ = ᴀʀᴇᴀ/ᴡɪᴅᴛʜ

= 9600/75ᴄᴍ

= 128ᴍ [ᴀɴꜱ]