Question

Each side of a given square tile is 15 cm. How many tiles will be needed for tiling the floor of a room 27 m wide and 25 m long?

• A. 30,000
• B. 15,000
• C. 3,000
• D. 1,500

Answer 1

The correct option is A 30,000

Length of the given room = 25 m
Width of the given room = 27 m
Area of the room
= 25 m x 27 m
= 2500 cm x 2700 cm
= 67,50,000 sq. cm
Length of each side of the square tile
= 15 cm
Number of tiles needed
= $\frac{67,50,000}{15\times 15}$ = 30,000