Question

If the perimeter of a rectangular field is 200 m add its breadth is 40 m then its area is (in $m^2$):

• A. 1200
• B. 2400
• C. 4800
• D. 6000

Answer 1

The correct option is B 2400

Perimeter of the rectangular field $=2(l+b)$

where l and b are the length and breadth of the rectangular field

$\Rightarrow 200=2(l+40)$

$\Rightarrow l+40=100$

$\Rightarrow l=60m$

Area of the rectangular field $=lb$

$=60\times 40$

$=2400m^2$