Lalita Barbara runs 10times around a square track and covers 4km . find the length of the wire.
Answers
If Lalita runs 10 times around a square track and covers 4 km then the length of the track is 100 m or 0.1 km.
Step-by-step explanation:
The no. of time Lalita Barbara runs around the square track = 10 times
The distance covered by her after running 10 times = 4 km = 4000 m
∴The distance covered by Lalita in one round will be = 4000 / 10 = 400 m
Let the length of the track be denoted as “a”.
We know that the distance covered in 1 round is equal to the perimeter of the square track.
i.e.,
Distance covered in one round = Perimeter of the square track
⇒ 400 = 4 * a
⇒ a = 400/4
⇒ a = 100 m or 0.1 km
Thus, the length of the square track is 100 m or 0.1 km.
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