Question

a rectangular floor is fully covered with several tile of equal size. all the tiles on the flor edges are blue and tiles in interior are green.the number of gren tiles are twice the number of blue tiles.​

Answer 1

Step-by-step explanation:

Let the inner rectangle have x tiles in column and y tiles in a row that is rectangle of x*y, so red tiles =xy

The white tiles=(x+2)*1*2+y*1*2)=2x+4+2y

So 2x+2y+4=xy.........

2x+4=xy-2y=y(x-2)..........

y=2x+4x−2y=2x+4x−2..

Now x will be 2 less than the value we are looking for and y should be an integer.

Let us see..

12.....x=10, so y=(2*10+4)/(10-2)=24/8=3

answer:12

Answer 2

Answer:

Your answer is 12...I can't get the explanation... but I answer is 12