Question

Find the cost of flooring the square room of side 10m with marble tiles 25cm × 20 cm at the rate of Rs 7.50 per tile

Answer 1

Ans.

The area of the square room
$= 10 \times 10 \: {m}^{2} \\ = 100 \: {m}^{2}$

The area of a single marble tile
$= 25 \times 20 \: {cm}^{2} \\ = 500 \: {cm}^{2} \\ = 0.05 \: {m}^{2}$
So, total number of marble tiles are
$= \frac{100}{0.05} \\ = 2000$
Therefore, 2000 marble tiles will cost
$= 2000 \times 7.50 \: rupees \\ = 15000 \: rupees$

I HOPE THAT THIS HELPS YOU.

Answer 2

Answer:

By Priyadarshini Srichandan At'Po Kumarbasta,Khordha:

Step-by-step explanation:

=The area of marble tile =25cm×20cm=500cm²

= 1M=100cm

= 10M*100cm=1000cm

= Find the area of square room =Side*Side

= 1000×1000=1000000 cm²

= number of the tiles

= 1000000/500 = 2000

each tile rate =rs. 7.50

Hence,2000 tiles rate

= 2000×rs.7.50

= 15000(answer)