Question

Question 43

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

According to question, length is 6 times its breadth.

$\therefore$ l = 6b

$\Rightarrow$ 120 = 6b

$\Rightarrow \frac{120}{6}=\frac{6b}{6}$ [dividing both sides by 6]

$\Rightarrow$ b = 20 cm

We know that,

Perimeter of the field = 2 $\times$(Length + Breadth)

= 2(120 + 20)

= 2$\times$(140)

= 280 cm