A rectangular field has area equal to 150 sq m and perimeter 50 m. Its length and breadth must be?
Choices.
A) 11	B) 99	C) 89	D) 10	E) 12
lb = 150   2(l + b) = 50 =&gt; l + b = 25   l – b = 5   l = 15 b = 10   Answer:10
<result>D</result>
A rectangular field has area equal to 150 sq m and perimeter 50 m. Its length and breadth must be?