Question

Rajan is planning to design the walls of his room with tiles. How many tiles with dimensions 8 cm and
13 cm will be required to fit in a region whose length and breadth are:
a 156 cm and 120 cm.
b. 130 cm and 144 cm.



Please help me with explanation...​

Answer 1

If one the dimension of small tiles are

length = 8 cm , breadth = 13 cm

so,area = 13 x 8 = 104

The area of wall = 156 x120 =18 ,720

another area of wall = 130 x 144 = 18,720

so ,area of one tiles = 104 cm

then the required tiles to fit in the region are

let "X" be the required tiles

X = area of wall / area of one tiles

X = 18720/ 104 = 180 cm

I hope you understand my answer