A room of 6m 20cm long and 5m 74cm broad is to be paved with square tiles. Find the least number of square tiles required to cover the floor.	Choose the correct choice from the following answers:
A) 88900	B) 87700	C) 88970	D) 88000	E) 89000
Explanation:   area of the room = 620 * 574 sq cm   size of largest square tile = H.C.F of 620cm and 574cm= 2cm   area of 1 tile = 2*2 sq cm   no. of tiles required = (620*574) / (2* 2)= 
<gadget id="calculator">(620*574) / (2* 2)</gadget>
<output>88_970</output>
88970   Answer: 88970) 88970
<result>C</result>
A room of 6m 20cm long and 5m 74cm broad is to be paved with square tiles. Find the least number of square tiles required to cover the floor.