Area Problems
The circumferences of two concentric are 176 m and 132 m respectively. what is the difference between their radii?

44 meter
7 meter
5 meter
8 meter

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Area Problems
The cost of papering the four walls of a room is Rs. 48. Each one of length, breadth and height of another room is double that of this room.The cost of papering the walls of the new room is?

Rs. 192
Rs. 298
Rs. 96
Rs. 384

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