Question

Length of a rectangular field is 6 times its breadth. If the length of the field is 120 cm, find the breadth and perimeter of the field.

Answer 1

Given, length of rectangular field l = 120 cm

Let breadth of rectangular field = b

Given, length is 6 times its breadth.

∴ l = 6b

⇒ 120 = 6b

⇒ `120/6 = (6b)/6`  ...[Dividing both sides by 6]

⇒ b = 20 cm

We know that, 

Perimeter of the field = 2 × (Length + Breadth)

= 2(120 + 20)

= 2 × (140)

= 280 cm