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 ?  Choose one:
A) Rs. 3430	B) Rs. 3440	C) Rs. 3450	D) Rs. 3460	E) Rs. 3490
Explanation:   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: Option Rs. 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 ?