15. Aarti takes 2 rounds along a square park of side 135 m and Pia takes 4 rounds along a rectangular park
with length 75 m and breadth 40 m. Who covers more distance and by how much?
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Aarti runs more by pia (1080 - 690) m which is 390 m.
Explanation:
Aarti: 2 × perimeter of square
= 2 × 4 × length of side
= 2 × 4 × 135
= 1080 metres
Pia: 4 times perimeter of rectangle
= 4 × 2 × (l+b)
= 6 × (75 + 40)
= 6 x 115
= 690 m
Aarti runs more by pia (1080 - 690) m which is 390 m.
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Amit runs around a rectangular park which is 120 m long and 80 m wide. Find the distance he covers in 3 rounds. ?
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