On increasing the length of any square by 2 unit and decreasing the breadth by 2 unit, the new area

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08 Feb 2013 square

On increasing the length of any square by 2 unit and decreasing the breadth by 2 unit, the new area will be

OPtion

1) 12 unit more
2) 12 unit less
3) 8 unit more
4) 8 unit less
5) 4 unit more
6) 4 unit less
7) 2 unit more
8) 2 unit less
9) no change
10) none of these

Solution

let the side is x so area = x^2
area of rectangle = (x+2)(x-2)
so difference = 4 unit (less)
It does not matter what the value of x is

Correct Option: 6 Best Solution (0)