Floor of a room is \(15 \text{ m } 17 \text{ cm}\) long and \(9 \text{ m } 2 \text{ cm}\) broad. What is the least number of square tiles required to pave the floor?

Question and options

Floor of a room is

15 \text{ m } 17 \text{ cm}

long and

9 \text{ m } 2 \text{ cm}

broad. What is the least number of square tiles required to pave the floor?

Correct answer: C - 814

1517 cm x 902 cm. HCF(1517, 902) = 41 cm is the largest square tile. Number of tiles = (1517/41) x (902/41) = 37 x 22 = 814.