Area Problems
A man runs round a circular field of radius 50m at the speed of 12 km/hr. What is the time taken by the man to take twenty rounds of the field?

220/7 min
230/7 min
110/7 min
90/7 min

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Area Problems
The perimeter of two squares are 68 cm. Find the perimeter of the third square whose area is equal to the different of the areas of these two squares.

64 cm
32 cm
60 cm
8 cm

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