Question

aryan walks around a square park of side 90m and ananya walks around a rectangular park of length 90m and breadth 60m if each one makes four rounds then who covers less distance and by how much?

Answer 1

distance of Aryan = 4 x 90 x 4

                            = 360 x 4 =1440 m

distance of ananya = 2x(90+60)x4

                              = 1200 m

ananya travelled  240 m less than aryan

Answer 2

Aryan's Case ---

He walks around a square park
Side of square park = 90 m
Perimeter of square = One round of the field by Aryan
Perimeter = 4 x side = 4 x 90 = 360 m
In four rounds = 360 x 4 = 1440 m

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Ananya's Case ----

Perimeter of rectangular field = 1 round by ananya
Perimeter = 2( l + b) = 2( 90 + 60) = 2 x 150 = 300m
In 4 rounds = 4 x 300 = 1200 m

1440m > 1200m

So, Ananya covered less distance by 1440 - 1200 = 240 m