What is the area of rectangular field?
I.	The perimeter of the field is 110 metres.
II.	The length is 5 metres more than the width.
III.	The ratio between length and width is 6 : 5 respectively.  Choose the correct choice from the following.
A) I and II only B) Any two of the three C) All I, II and III D) I, and either II or III only E) None of these
EXPLANATION   I. 2(l + b) = 110 l + b = 55.   II. l = (b + 5) l – b = 5.   III. l/b (  + 5)= 
<gadget id="calculator">(  + 5)</gadget>
<output>5</output>
5.   III. l/b= 6/5 =&gt; 5l – 6b = 0.   These are three equations in l and b. We may solve them pairwise.   Any two of the three will give the answer.   answer is (Any two of the three).
<result>B</result>
What is the area of rectangular field?
I.	The perimeter of the field is 110 metres.
II.	The length is 5 metres more than the width.
III.	The ratio between length and width is 6 : 5 respectively.