Answer: No, we cannot find for its length as we can see that variables got cancelled so, we are not able to find any value for 'y'.
Step-by-step explanation:
Since we have given that
Let length of room's floor be y
Let width of a room's floor be y-5
Perimeter of room's floor be 4y+1
As we know the formula for " Perimeter of rectangle ":
![Perimeter=2(Length+Width)\\\\Perimeter=2(y+y-5)\\\\4y-1=2(2y-5)\\\\4y-1=4y-20\\\\4y-4y=-20+1\\\\0\neq -19](https://tex.z-dn.net/?f=Perimeter%3D2%28Length%2BWidth%29%5C%5C%5C%5CPerimeter%3D2%28y%2By-5%29%5C%5C%5C%5C4y-1%3D2%282y-5%29%5C%5C%5C%5C4y-1%3D4y-20%5C%5C%5C%5C4y-4y%3D-20%2B1%5C%5C%5C%5C0%5Cneq%20-19)
No, we cannot find for its length as we can see that variables got cancelled so, we are not able to find any value for 'y'.