<PRE><B>Question 194600</B>
 fabricating shoop has dimensions 80&#39;x100&#39; with a 15&#39; ceiling its ventilating
 system can evacuate 5200 cu ft. per minute. if there was a poisonous gas leak
 in the shop how long would it take to exchange all the air in the shop to the nearest minute?
:
Find the volume of the shop
80 * 100 * 15 = 120,000 cu/ft
;
Find the time to remove this amt, at 5200 cu/ft removal rate
{{{120000/5200}}} = 23.07 ~ 23 min to accomplish this
:
Not that hard, right?</PRE>