V is the volume of a cylinder; the radius of the cylinder is 2.4. The height of the cylinder is 550% 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 = 2.4 so r^2 ~ 6 and h = 6.5 * 2.4 ~ 16   So 22/7 * 6 * 16 ~ 302   so answer should be   B. 300 &lt; V &lt; 500   Answer : 300 &lt; V &lt; 500
<result>B</result>
V is the volume of a cylinder; the radius of the cylinder is 2.4. The height of the cylinder is 550% more than the radius. Which of the following is true?