Area Problems
The dimensions of a room are 10m x 7m x 5m. There are 2 doors and 3 windows in the room. The dimensions of the doors are 1m x 3m. One window is of size 2m x 1.5m and the other 2 windows are of size 1m x 1.5m. The cost of painting the walls at Rs. 3 per sq m is

Rs.274
Rs.174
Rs.374
Rs.474

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Area Problems
The radius of a circle is increased so that its circumference increase by 5%. The area of the circle will increase by?

10.5 %
8.75 %
10 %
10.25 %

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