okay, I am just throwing stuff out there, so please, don't tell me how I did this wrong, it might make my head explode trying to comprehend the workings.
My answer is 133 seconds, and this is how I got to it;
btu/ #cigars * ceiling height + temp rise = 250 / 150 * 10 + 70 = 133
Keith
Congrats on passing your exam! If you had a lot of questions like the one you asked on the exam, I can see why you are so excited.
As for the problem, I worked it out and came up with 2 answers, neither of which are probably close. I worked it out one way and got 31.7 seconds, and another way I got 1.7 seconds. I am going to go with the first answer of 31.7 seconds.
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