What will be the cost of gardening 1 meter boundary around a rectangular plot having perimeter of 340 meters at the rate of Rs. 10 per square meter ?  Pick
A) 22887 B) 3440 C) 2777 D) 2689 E) 2771
In this question, we are having perimeter.   We know Perimeter = 2(l+b), right   So,   2(l+b) = 340   As we have to make 1 meter boundary around this, so   Area of boundary = ((l+2)+(b+2)-lb)   = 2(l+b)+4 = 340+4= 
<gadget id="calculator">340+4</gadget>
<output>344</output>
344   So required cost will be= 344 * 10= 
<gadget id="calculator">344 * 10</gadget>
<output>3_440</output>
3440   Answer: 3440
<result>B</result>
What will be the cost of gardening 1 meter boundary around a rectangular plot having perimeter of 340 meters at the rate of Rs. 10 per square meter ?