Question

pinky runs around a square field of side 75 m bob runs around a rectangular field with length 160m and breadth 105m who cover more distance and by how much​

Answer 1

Distance covered by Pinky in one round = Perimeter of the square

Distance covered by Pinky in one round = 4 × length of a side

Distance covered by Pinky in one round = 4 × 75 m

Distance covered by Pinky in one round = 300 m

_____________________

Distance covered by Bob in one round = Perimeter of the rectangle

Distance covered by Bob in one round = 2 × (length + breadth)

Distance covered by Bob in one round = 2 × (160 m + 105 m)

Distance covered by Bob in one round = 2 × 265 m

Distance covered by Bob in one round = 530 m

____________________

Difference in the distance covered = 530m - 300m

Difference in the distance covered = 230 m

Therefore:-

Bob covers more distance by 230 m.

Answer 2

$\huge\bf{\color{aqua}{||\:Good\: Night\:||}}$

CASE - 1 :-

☘️ Pinky runs around a square field of side 75m.

✔️ Total Distance covered by Pinky,

╰➝ 4 × 75

╰➝ 300 m

CASE - 2 :-

☘️ Bob runs around a rectangular field with length 160m and breadth 105m.

✔️ Total Distance covered by Bob,

╰➝ 2 (160 + 105)

╰➝ 2 × 265

╰➝ 530 m

BY HOW MUCH ?

→ 530 - 300

→ 230

∴ Bob cover more distance and he covered 230m.