1) The floor of a room of size 7 m 50 cm * 4 m is to be covered by rectangular tiles of size 60 cm by 50 cm.
Find
(i) the number of tiles required to cover the floor of the room .
(ii) the total cost if one dozen tiles cost ₹300.
Find
(i) the number of tiles required to cover the floor of the room .
(ii) the total cost if one dozen tiles cost ₹300.
Answers & Comments
Step-by-step explanation:
cool...in it
bsnsnnsnkww
Verified answer
Answer:
(i)100 tiles
(ii) ₹2500
Step-by-step explanation:
(i)No. of units = [tex]\frac{Area- of -full- figure}{Area of ut.}[/tex]
Here, No. of tiles required = [tex]\frac{Area of room}{Area of tile}[/tex]
= [tex]\frac{7.50m * 4m}{60 cm* 50 cm}[/tex]
= [tex]\frac{750*400}{60*50}[/tex]
= [tex]\frac{300000}{3000}[/tex]
= 100 tiles
∵100 tile were used to cove the floor.
(ii)Cost of one dozen tiles = ₹300
So, cost of 1 tile = ₹300 ÷ 12 = ₹25
The floor has 100 tiles.
So, cost of 100 tiles = ₹2500
∵The cost to cover the floor is ₹2500