Question

a marble tile measures 25 CM by 20 cm how many times will be required to cover wall of size 4m by 3M find out the cost of tiling if one tile cost rupees 20

Answer 1

Using formula ( length into breadth ) Area of rectangle
then
25cm multiply 20cm we get 500cm^2
and
400cmm multiply 300cm we get 120000cm^2
because 1m = 100 cm
then divide 120000cm^2 by 500cm^2
we get 240 tiles
cost = 240×20 =4800 rs

Answer 2

area coverd by 1 tile =25 x 20= 500cm²

area of wall= 4m x 3m = 12m²=120000cm²

tiles required = 120000÷500

                       =240 tiles

cost of tiling= 240×20

=4800rs

HOPE UH UNDERDTAND