Question

length of a rectangular field is 250 m and width is 150 m. 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 4 km

Answer 1

Solution :

Dimensions of the rectangular field :

Length ( L ) = 250 m

Breadth ( B ) = 150 m

i ) Distance covered to run one

round = perimeter of the rectangle

= 2( L + B )

= 2( 250 + 150 )

= 2 × 400

= 800m

Now ,

Distance covered around the field

3 times = 3 × 800

= 2400 m

ii ) If she covers 800m in one round

Let In ' n ' rounds she covers 4 km

n = ( 4 km )/( 800 )

= 4000 m/800m

= 5

Therefore ,

She has to run 5 rounds to cover 4km

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