Question

find the cost of flooring a room of 17.5m with sqare tiles of 25cm length at ₹ 850 per 100 tiles ​

Answer 1

Answer:

The perimeter of the floor of a rectangular room is 17m and its length is 5 m . Find the cost of flooring the room with square tiles of side 25 cm at the rate of Rs 850 per hundred tiles

Answer 2

Answer:

The cost of flooring the room is ₹2,380.

Step-by-step explanation:

Area of room = 17.5m²

Converting m² into cm²,

1m² = 10000cm²

17.5m² = (17.5 × 10000) cm²

           = 175000 cm²

Area of room = 175000 cm²

Side of each square tile = 25 cm

We know,

Area of square = side × side

So,

Area of each square tile =  25 cm × 25 cm

                                        = 625 cm²

Now, we have to find out the number of square tiles.

Number of tiles = $\frac{Area\:of \:room}{Area \:of\: 1\:tile}$

                          =  $\frac{175000}{625}$

                          = $280$

The cost of 100 tiles = ₹850

Cost of 1 tile = ₹$\frac{850}{100}$

Cost of 280 tiles = ₹$8.5$×280

                            =₹2,380