CTET 2 Math and Science 3 Jan 2022 Paper

$1\mathrm{km}=1000\mathrm{m}$
The area of the square $=0.01{\mathrm{km}}^2$



Perimeter of square $=4\times$ SIde
$\Rightarrow$ Perimeter of square $=4\times 100=400\mathrm{m}$
$1\mathrm{m}=100\mathrm{cm}$
$\Rightarrow 150\mathrm{cm}=1.5\mathrm{m}$
Perimeter of rectangle $=2\times ($ Length $+$ Breadth $)$
$\Rightarrow$ Perimeter of rectangle $=2\times \left(1.5+100\right)$
$\Rightarrow$ Perimeter of rectangle $=203\mathrm{m}$
Distance covered in 1 round $=203\mathrm{m}$
$\Rightarrow$ Distance covered in 10 rounds $=203\times 10=2030\mathrm{m}$
He has to do $2030÷400=5.075$
$\therefore$ Approx 5 rounds he has to do cover the same number of round.