You have some marbles, each one of the colours red, orange, yellow, green, blue, and violet. There is at least one and no more than nine of each colour. No two colours have the same number of marbles. How many marbles of each colour do you have given the following clues? [Note: 1 is not a prime!]
1) Is there a colour with more marbles than violet has? If so, the number of yellow marbles is prime.
2) The total number of marbles of all colours is even.
3) The number of violet marbles is the product of the number of green marbles and the number of yellow marbles.
4) The number of blue marbles is not prime.
5) The number of red marbles is not prime, the number of green marbles is not prime, but the sum of these is prime and is the number of marbles that are of some other colour.
Submit your answer to Gene Wirchenko <email@example.com>. Your answer should be in the form of a proof. That means to show how your answer must be correct. The deadline is Wednesday, December 6, 2017 at noon Pacific Time. I will post the answer shortly after.
“It’s on our Website.”
Ever heard this?
For me, too many times. My usual question is where?
My credit union allows one to look up information about branches. What would be most useful for you? For me, it is the hours. In particular, the hours for and around holidays.
Unfortunately, the hours listed are the usual hours. I already know those. Apparently, holiday hours are put elsewhere on the Website. Where? I do not know.
What is on a Website might not be what is needed. See this xkcd comic for an example for a university. (My alma mater’s Website really is about this bad.)
From a USENET post: ‘I had a “former” customer just remove his AV. Problem solved.’
The issue: The word “just”. Did the ex-customer do it recently, or did he do it without doing other things (like asking if he should)?
Two people have different birthdays. With each expressed as MM-DD, all eight digits are different. If this is possible, what are the two birthdays? If not, prove that it is not possible.
Submit your answer to Gene Wirchenko <firstname.lastname@example.org>. Your answer should be in the form of a proof. That means to show how your answer must be correct. The deadline is Wednesday, November 29, 2017 at noon Pacific Time. I will post the answer shortly after.
Tools are sometimes not nearly as convenient to use as they should be.
I have to deal with some back taxes and have to submit some supporting data. I could just scan it in and send the files. Right?
Unfortunately, setting up an account with Canada Revenue Agency is not that easy. I start off in restricted mode where I can not send files. Sending files is why I wanted to set up the account.
There is more. Apparently, even after getting full access, I have to send the files one at a time. I have about thirty files to send. No, they do not accept .zip files.
So I am having to print out my scans and mail the works. A bother to print out each file, and then, I ran out of printer ink. Being smart, I have a spare. At this point, I found that I had been sold the wrong cartridge, and not being so smart, I had not noticed at the time.
Should we have maybe stopped at fire and the wheel?
A SoraNew24 article has this as its last paragraph: “As for the taste of this meaty monstrosity? It has all the classic taste of Cup Noodle but with more in the way of chunky goodness and meat sweats, although that may just have been us. Finally, there’s a Cup Noodle that contains two of the main food groups, bird and mammal. Cup Noodle and questionable meat lovers rejoice! Unless they sell out, like last time.”
The issue: “sell out” can means sold all of something and have no more or to compromise one’s ethics. Either might fit.
Five friends (Allison, Beth, Bob, Sue, and Tom) live in consecutive houses on the same side of one block of an east-west street. There are only the five houses on that side of the block. From the clues, determine who lives where.
Bob does not live at either end of the block.
Exactly one girl and one boy live next to Sue.
Tom lives west of Beth.
Bob lives east of Allison.
Usually, the friends meet at Sue’s because the total distance everyone has to travel to get there is lower than that for any other of the five friends.
Submit your answer to Gene Wirchenko <email@example.com>. Your answer should be in the form of a proof. That means to show how your answer must be correct. The deadline is Wednesday, November 22, 2017 at noon Pacific Time. I will post the answer shortly after.