Question

The length of a rectangular playground is three times its width. If a boy walks around the ground, he covers 160m. Find its length and Width​

Answer 1

Answer:

Length = 60m

Breadth = 20m

Step-by-step explanation:

let the breadth of the rectangle be x

and the length be 3x

Perimeter = 2(l+b) = 160m

∴ 2l + 2b = 160m

∴ 2(3x) + 2(x) = 160m

∴ 6x + 2x = 160m

∴ 8x = 160m

∴ x = 20m

∴ Length = 3 * 20m = 60m

∴ Breadth = 1 * 20m = 20m

Answer 2

⚝Solution:-

Let the Width be x

Then the length=3x

Perimeter=2(Length+Breadth)

➯160=2(3x+x)

➯160=2(4x)

➯160=8x

➯160/8=x

➯20=x

So the Breadth=20Metre

Length=3×20=60Metre