A rectangular field is to be fenced on three sides leaving a side of 20 feet uncovered. If the area of the field is 50 sq. feet, how many feet of fencing will be required? Options:	A) 34	B) 40	C) 25	D) 88	E) 78
We have: l = 20 ft and lb = 50 sq. ft.   So, b = 2.5 ft.   Length of fencing = (l + 2b) = (20 + 5)= 
<gadget id="calculator">(20 + 5)</gadget>
<output>25</output>
25 ft.   ANSWER:25
<result>C</result>
A rectangular field is to be fenced on three sides leaving a side of 20 feet uncovered. If the area of the field is 50 sq. feet, how many feet of fencing will be required?