V is the volume of a cylinder; the radius r is 3.4. The height is 350% more than the radius. Which of the following is true? Choose the most appropriate option:
A) 100 < V < 300	B) 300 < V < 500	C) 500 < V < 700	D) 700 < V < 900	E) 900 < V < 1100
As we see the answers are in form of range we can use approximation   Volume of cylinder is πr^2h   Given π= 22/7 and r = 3.4 so r^2 ~ 12 and h = 4.5 * 3.4 ~ 15   So 22/7 * 12 * 15 = 566   so answer should be   C. 500 &lt; V &lt; 700   Answer : 500 &lt; V &lt; 700
<result>C</result>
V is the volume of a cylinder; the radius r is 3.4. The height is 350% more than the radius. Which of the following is true?