Area Problems
The length of a rectangle is double while its breadth is halved. What is the percentage change in area?

No change
50
None of these
75

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Area Problems
Area of rectangular field is 3584 m 2 and the length and the breadth are in the ratio 7 : 2, respectively. What is the perimeter of the rectangle?

292 m
246 m
286 m
288 m

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