The least number of square tiles required to pave the floor of a room with dimensions 15 meters and 12 meters will be:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 20.
Calculations:
Length of room = 15 m
Breadth of room = 12 m
HCF of 12 and 15 = 3
Area of 1 tile = 3 × 3 = 9
Area of room = 15 × 12 = 180
Required number of tiles = 180/9 = 20