Find the number of square tiles to cover the floor of a room measuring 5.5 m * 9.5 m leaving 0.25 m space around the room. A side of square tile is given to be 25 cms? Pick
A) 422 B) 476 C) 429 D) 428 E) 720
Floor area to be covered by tiles = 5 * 9= 
<gadget id="calculator">5 * 9</gadget>
<output>45</output>
45   tiles area= 0.25 * 0.25= 
<gadget id="calculator">0.25 * 0.25</gadget>
<output>0.0625</output>
0.0625   No. of tiles= 45/0.0625= 
<gadget id="calculator">45/0.0625</gadget>
<output>720</output>
720   Answer : 720
<result>E</result>
Find the number of square tiles to cover the floor of a room measuring 5.5 m * 9.5 m leaving 0.25 m space around the room. A side of square tile is given to be 25 cms?