Question

17.A tile measures 15 cm by 10 cm. How many tiles will be required to cover a wall of size 5 m by 4.5m? Also, find the total cost of the tiles at Rs. 32.50 per tile.​

Answer 1

Answer:

Area of wall = l×b

=5×4.5

=22.5 m२

lenth of tile = 15/100 =0.15m

breath of tile =10/100= 0.1m

area of tiles = l×B

=0.15×0.10

=0.015 m २

number of tiles required to cover wall =22.5

0.015

=1500 tiles

total cost of tiles =1500× 32.50

=Rs.48750