Pinky runs around a square field of side $75 m$ , Bob runs around a rectangular field with length $160 m$ and breadth $105 m$ . Who covers more distance and by how much?

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Solution

Distance covered by Pinky in one round = Perimeter of the square
= 4 × length of a side
= 4 × 75 $m$ = 300 $m$
Distance covered by Bob in one round = Perimeter of the rectangle
= 2 × (length + breadth)
= 2 × (160 $m$ + 105 $m$ )
= 2 × 265 $m$ = 530 $m$
Difference in the distance covered
= 530 $m$ – 300 $m$
= 230 $m$ .
Therefore, Bob covers more distance by 230 m.

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Pinky runs around a square field of side 75m, Bob runs around a rectangular field with length 160 m and breadth 105 m. Who covers more distance and by how much?

Pinky runs around a square field of side $75 m$ , Bob runs around a rectangular field with length $160 m$ and breadth $105 m$ . Who covers more distance and by how much?