A horse runs around the ground twice and covers a distance of 8 km, one side of the square ground is?

2 km

1 km

3 km

None of these

Explanation

Since the square has four equal sides, the distance covered in one side can be found by dividing the total distance covered (8 km) by 4 (the number of sides):

8 km ÷ 4 = 1 km

So, the length of one side of the square ground is 1 km.