Bajinder runs ten times around a square track and covers 4km. Then the length of the track is[[1]].

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Detailed Solution

Bajinder runs ten times around a square track and covers 4km. Then the length of the track is 400m.
Given that Bajinder runs ten times around a square track and covers 4km.
Since,

1 km = 1000 m

. So,

4 km = 4000 m

.
Distance covered in 10 rounds = 10

\times

Perimeter of the track

\Rightarrow 4000 = 10 \times (4 \times side)

\Rightarrow 4000 = 40 \times side

∴ side = \frac{4000}{40}

∴ side = 100 m

Then, length of the square track

= 4 \times 100 = 400 m

Hence, the length of the track will be

400 m

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