If you’re interested in what the problem is here it is… Suppose the cover price of a book is $24.95, but bookstores get a 40% discount. Shipping costs $3 for the first copy and 75 cents for each additional copy. What is the total wholesale cost for 60 copies?
On Jan 31, 2014, at 10:18 PM, Scott W Dunning <swdunn...@cox.net> wrote: > Any chance you guys could help with another question I have? Below is a code > to a different problem. The only thing I don’t understand is why when > calculating the 'discounted price’ you have to subtract 1? Thanks again > guys! > > price_per_book = 24.95 > discount = .40 > quantity = 60 > discounted_price = (1-discount) * price_per_book > shipping = 3.0 + (60 - 1) * .75 > total_price = 60 * discounted_price + shipping > print total_price, 'Total price' > > Scott > > > > On Jan 31, 2014, at 8:02 PM, Denis McMahon <denismfmcma...@gmail.com> wrote: > >> On Thu, 30 Jan 2014 21:12:19 -0800, scottwd80 wrote: >> >>> Here is the question that was asked and below that I'll paste the code I >>> have so far. >> >> The following is a reasonably but not highly obfuscated short solution to >> the problem set in python 2.7. With a bit of luck, after each lesson of >> your course, you'll be able to understand a bit more of how it works. >> >> M=60;H=M*60 >> def s(h,m,s): return h*H+m*M+s >> def hms(s): return (int(s/H),int((s%H)/M),s%M) >> (a,b,c)=hms(s(6,52,0)+3*s(0,7,12)+2*s(0,8,15)) >> print "{:02d}:{:02d}:{:02d}".format(a,b,c) >> >> When you can write a short paragraph describing what each line of the >> program does, you'll be on your way to understanding a few of the >> structures, syntaxes and mechanisms of python. >> >> Or you could show it to your lecturer or a TA and say it was suggested >> that you ask her or him to work through it with you. >> >> -- >> Denis McMahon, denismfmcma...@gmail.com >> -- >> https://mail.python.org/mailman/listinfo/python-list >
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