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- Who is Who
Sweety runs around a square park of side $ 75 \mathrm{~m} $. Bulbul runs around a rectangular park with length $ 60 \mathrm{~m} $ and breadth $ 45 \mathrm{~m} $. Who covers less distance?
Given:
Sweety runs around the square park of side $75\ m$. Bulbul runs around the rectangular park with length $60\ m$ and breadth $45\ m$.
To do:
We have to find that who among them covers less distance.
Solution:
The side of square park $ = 75\ m$
We know that,
The perimeter of a square with side $a$ is $4a$.
Therefore,
The perimeter of square park $ = 4\times$ each side of the square park
$= 4\times75$
$= 300\ m$
The distance covered by Sweety is $300\ m$.
The length of the rectangular park $ =175\ m$
The breadth of the rectangular park $ =125\ m$
We know that,
The perimeter of a rectangle of length $l$ and breadth $b$ is $2(l+b)$
Therefore,
The perimeter of the rectangular park $ = 2\times(60+45)$
$= 2\times105$
$= 210\ m$
The distance covered by Bulbul is $210\ m$.
Hence, Bulbul covers less distance than Sweety.