Mathematics
Pinky runs 8 times around a rectangular park with length 80 m and breadth 55 m while Pankaj runs 7 times around a square park of side 75 m. Who covers more distance and by how much?
Answer
For Pinky:
Perimeter of rectangular park = 2(length + breadth)
= 2(80 + 55) m
= 2 × 135 m
= 270 m
Distance covered by Pinky in 8 rounds = 8 × 270 m = 2160 m
For Pankaj:
Perimeter of square park = 4 × side
= 4 × 75 m
= 300 m
Distance covered by Pankaj in 7 rounds = 7 × 300 m = 2100 m
Difference in distances covered = 2160 m - 2100 m = 60 m
Hence, Pinky covers more distance by 60 m.
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