If the perimeter of a rectangular garden is 800 m, its length when its breadth is 100 m is?
Pick one:  A) 300 m  B) 777 m  C) 200 m  D) 167 m  E) 128 m
2(l + 100) = 800 =&gt; l   = 300 m   300 mnswer:300 m
<result>A</result>
If the perimeter of a rectangular garden is 800 m, its length when its breadth is 100 m is?