The number of square tiles of side 50 cm is required to pave the floor of a square room of side 3.5 m is
A112
B92
C68
D49
Answer:
D. 49
Read Explanation:
Area of tile = 50x50
side of the room = 3.5 meters = 350 cm
Area of the room = 350x350
No. of the tile required is= Area of room/ Area of 1 tile =350x350/(50*50) = 49
