Question

A floor of the room 12 m long and 8 m wide is to be covered by square tiles. If each square tile is 0.8 m, what is the cost of tiling at the rate of Rs. 7 per tile?

• A. 990
• B. 1000
• C. 1025
• D. 1050

Answer 1

The correct option is D 1050

Length of the floor = 12 m
Breadth of the floor = 8 m
Area of the floor = length x breadth
= 12 × 8
= 96 $m^2$

Also, area of floor
= Total area of tiles
= Area of one tile x number of tiles

Area of one square tile = side x side
= 0.8 × 0.8 $m^2$
= 0.64 $m^2$

Therefore, number of tiles required
= $\frac{Areaoffloor}{Areaofonetile}$
= $\frac{96}{0.64}$
= 150 tiles

For 1 tile, the cost of tiling is Rs 7 .
For 150 tiles, the cost of tiling
= Cost per one tile x number of tiles
= 7 × 150
= Rs. 1050