Niharika walks thrice around a square field of side 22 m. Girish walks twice around a rectangular field with length 10 m and breadth 12 m. Who covers more distance and by how much?
A
Girish, 20m
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B
Niharika, 200m
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C
Girish, 176m
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D
Niharika, 176m
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Solution
The correct option is D Niharika, 176m Side of square field = 22 m Perimeter of square field = 4 × 22 = 88 m Length of rectangular field = 10 m Breadth of rectangular field = 12 m Perimeter of rectangular field = 2(10 + 12) = 2(22) = 44 m ∴ Distance covered by Niharika = 3 × 88 = 264 m And distance covered by Girish = 2 × 44 = 88 m So, Niharika covers more distance than Girish and by (264 - 88) m = 176 m