Question

the perimeter of a rectangle is 40 cm the length is 1 less than twice the width of the rectangle find its length and breadth​

Answer 1

Step-by-step explanation:

Let the breath be x

2(l+b) = 40 cm

2( 2x-1 + x ) = 40 cm

6x - 2 = 40 cm

6x = 42 cm

x = 42/6 cm

x = 7 cm

∴ The breath is 7 cm, and

   the length is 13 cm