Area Problems
A tank is 25 m long, 12 m wide and 6 m deep. The cost of plastering its walls and bottom at 75 paise per sq. m, is:

Rs. 458
Rs. 568
Rs. 558
Rs. 456

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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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