Area Problems
A circular disc of area 0.49 ? square meters, rolls down a length of 1.76 km. The number of revolutions it makes is?

600
300
4000
400

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Area Problems
The percentage increase in the area of a rectangle, if each of its sides is increased by 20% is:

44%
46%
42%
40%

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Area Problems
A park is in the form of a square one of whose sides is 100 m . The area of the park excluding the circular lawn in the centre of the park is 8614 m 2. The radius of the circular lawn is?

31 m
41 m
21 m
None of these

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