The length of the room is 2½ times the breadth. The perimeter of the room is 70 m. What are the length and breadth of the room.

Step-by-step explanation:

Let breadth of the room be 'x'

Let length of the room be ''

Perimeter ( P ) = 70 cm

Now, let's find the breadth of the room 'x '

Perimeter of rectangle =

plug the values

Collect the like terms

Calculate the product

Swap the sides of the equation

Divide both sides of the equation by 7

Calculate

Breadth = 10 cm

Now, Let's find the length of the room ' 2.5x '

Length of the room =

Plug the value of X

Calculate the product

Thus , The length and breadth of the room is 25 cm and 10 cm respectively.

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