<PRE><B>Question 310795</B>
The gas tank of a truck cylinder is 4 ft long with a diameter of 2.5ft. 
At the gas station, a pump pours gas at the rate of 3ft cubed per minute.
 How many minutes does it take to fill the empty tank with that pump?
:
Find vol of a cylinder {{{V = pi*r^2h}}}
r = 1.25 ft
{{{V = pi*1.25^2*4}}}
V = 19.635 cu ft
:
time = {{{19.635/3}}}
t = 6.545 minutes</PRE>