Length of a rectangular field is 250m and width is 150m. Anuradha runs around this field 3 times. How far did she run?

How many times she should run around the field to cover a distance of 4km?

Given:

Length, l = 250 m

Breadth, b = 150 m

Perimeter of field = 2 × (l + b)

= 2 × (250 + 150)

= 2 × 400

= 800 m

So distance covered after running three times = 3 × 800

= 2400 m or 2.4 km

To cover a distance of 4 km, Anuradha should run = 4000 / 800

= 5 times.