Find the number of square tiles to cover the floor of a room measuring 10.5 m * 9.5 m leaving 0.25 m space around the room. A side of square tile is given to be 25 cms? Choose the correct choice from the following:
A) 422	B) 476	C) 1440	D) 428	E) 413
Floor area to be covered by tiles = 10 * 9= 
<gadget id="calculator">10 * 9</gadget>
<output>90</output>
90   tiles area= 0.25 * 0.25= 
<gadget id="calculator">0.25 * 0.25</gadget>
<output>0.0625</output>
0.0625   No. of tiles= 90/0.0625= 
<gadget id="calculator">90/0.0625</gadget>
<output>1_440</output>
1440   Answer : 1440
<result>C</result>
Find the number of square tiles to cover the floor of a room measuring 10.5 m * 9.5 m leaving 0.25 m space around the room. A side of square tile is given to be 25 cms?