Question

The dimensions of a rectangular park are 300m by 200m.Fimd how many rounds should a person run around this park to cover a distance of 9km.

Answer 1

Perimeter=2(l+b)
=2(300+200)
=1000metres
=1km
$No. of rounds = \frac{given \: distance}{perimeter} \\ = \frac{9km}{1km} \\ = 9 \: rounds$

Answer 2

$\:\:\:\: \Large \underline {\sf{Given\::}}$

$\star \: \small \sf Dimension\:of\:rectangular\:park\:=\: 300\:m \times 200\:m$

$\star \: \small \sf Given\:distance\:to\:cover\:=\:9\:km$

$\:\:\:\: \Large \underline {\sf{To\:Find\::}}$

$\star \: \small \sf Number\:of\:rounds\:person\:run$

$\:\:\:\: \Large \underline {\sf{Solution\::}}$

$\:\:\:\: \bigstar \: \underline {\sf{Perimeter\:of\:rectangular\:park\::}}$

$\underline{\boxed{\sf{\red{Formula\:used\:=\: 2(length\:+\:breadth)}}}}$

$\:\:\:\: : \implies\sf 2(300\:+\:200)$

$\:\:\:\: : \implies\sf 2(500)$

$\:\:\:\: : \implies\sf 1000\:m$

$\:\:\:\: \small \underline{\boxed{\sf{Perimeter\:of\: rectangular\:park\:=\:1000\:m\:or\:1\:km}}}$

$\:\:\:\: \small\underline{\boxed{\sf{Now\:,\:Number\:of\:rounds\:=\: \dfrac{Distance(given)}{Perimeter}}}}$

$\:\:\:\: \star \: \sf Number\:of\:rounds\:=\: \cancel \dfrac{9}{1}$

$\:\:\:\: \bigstar \: \Large {\underline{\underline{\sf{Number\:of\:rounds\:=\:9}}}}$

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