MrRubix's Riddle Thread

[MahouMinachan]

Re: MrRubix's Riddle Thread

Okay, I made a chart, and none of the hand-minute angles corresponded, so I'll say you can always tell exactly what time it is.

[Beethovens mask]

Re: MrRubix's Riddle Thread

You can never tell us the time if you can't distinguish between the two hands.

Itmorr is correct. If the hands are identical, then you can't distinguish what time it is. Of course, if you are constantly watching the clock, you will be able to tell the difference, but seeing as you said when you can't read it, you obviously aren't watching it constantly.

[MrRubix_MK5]

Re: MrRubix's Riddle Thread

Incorrect

If I said the hands looked like this:

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What time would you tell me that is?

[rushyrulz]

I'm prolly wrong but, I'll guess 0 times. My reasoning is that you're 100% certain of what time it is all the time and if you're 100% certain, how can you ever be wrong?

EDIT: Whoa, I was like quadruple ninjad.

I'll just edit a new answer cuz my first one was wrong... This time I won't get ninjad.

I don't really understand half the riddle, are you watching it at all times? Do you have the ability to distinguish a minute from an hour in your head. There are a lot of variables in this, but I'll go with a completely opposite answer than I did last time. I hope I don't have to come up with a number, cuz frankly I don't want to do the math.

My answer is you will be unable to tell every time except for the following times:
1:05, 2:10, 3:15, 4:20, 5:25, 6:30, 7:35, 8:40, 9:45, 10:50, 11:55, 12:00, 1:55, 2:50, 3:45, 4:40, 5:35, 6:30, 7:25, 8:20, 9:15, 10:10, 11:05. DAMMIT AND EVERY FRIGGEN OTHER TIME IN BETWEEN!

My reasoning on the 1:55 to 11:05 is because you can tell by the location of the hands. In the instance of 1:55. It's impossible for it to be 11:05 if the hand on the 11 side is so close to the 12. See img.


MIRITE?

I still have a feeling I'm forgetting a few things. I don't expect this to be right, but I do expect it to be partially right.

K I think I'm done. lol


ugh no I'm not! I HATE YOU RUBIX BLOW MY BRAIN UP WILL YA!?!!?!? K editing still. I have a new answer even.

Okay final answer: You can always tell unless the hands of the clock make a perfect 180˚ angle.

Gimme my million dollars, Regis. I'm about 98% on this. The other 2% suggests that you're Rubix and any riddle you might have is way out of my league.


P.S. My frontal lobe melted in the process of making this post.
P.P.S. I never deleted anything to show you my thought process.

[MrRubix_MK5]

Re: MrRubix's Riddle Thread

You're 100% certain about the hand positions. From the positions, you deduce the time.

[wwwJ4mmYcouk]

Re: MrRubix's Riddle Thread

Incorrect

If I said the hands looked like this:

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|_____

What time would you tell me that is?

It can be one of two times...

12:15 or 3.00 ?

[Beethovens mask]

Re: MrRubix's Riddle Thread

Incorrect

If I said the hands looked like this:

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|_____

What time would you tell me that is?

I would say that it is 3 o clock.

It can be one of two times...

12:15 or 3.00 ?

If it was 12:15 then the top hand would be farther a long. Rubix you are correct.


EDITED: I was being stupid. *slaps head*

[MrRubix_MK5]

Re: MrRubix's Riddle Thread

It can be one of two times...

12:15 or 3.00 ?

3:00 would be right.

12:15, not correct. Look at your watch when it's 12:15. Is the hour hand pointing straight up? When the minute hand makes a full rotation, does the hour hand suddenly "click" over one hour or does it move gradually with time?

[MahouMinachan]

Re: MrRubix's Riddle Thread

It's only 3:00.

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This looks more like 12:15.

Edit: If 12 exact is 0 degrees, at 12:15 the hand would be at 90 degrees, but the hour would be at 7.5 degrees.

[wwwJ4mmYcouk]

Re: MrRubix's Riddle Thread

Yer i think i am out of my depth... Back to watching TV


EDIT: Rubix i understand about the hour hand being slightly more at an angle if it is 1/4 past the hour.

[Beethovens mask]

Re: MrRubix's Riddle Thread

You can all use this to draw out your examples of time, not little slashs and things.

[MahouMinachan]

Re: MrRubix's Riddle Thread

I'd rather just name angles because it gives exactness.

[MrRubix_MK5]

Re: MrRubix's Riddle Thread

Incorrect

I am assuming your logic is overlaps minus noon, which is the "initial" answer most people would give at first glance

[Fractal_Monkey]

Re: MrRubix's Riddle Thread

Oops, thought it was a different question the first time. My bad for not reading.

Okay, let m = number of degrees turned by the minute hand (mod 360)
h = number of degrees turned by the hour hand

now, h - m/12 = 0 (mod 30) is always true, so it follows that any time where the statement

m - h/12 = 0 (mod 30) (i)

is true would correspond to a pair of times where the hands can be interchanged.

Now, plugging some values of m and h into a table reveals that m-h/12 increases by 143 every 24 minutes i.e. m-h/12 increases at the rate of 143/24 per minute. The statement (i) holds true every 30*24/143 minutes, or every 5.034965 minutes.

Over a period of 12 hours (720 minutes), there are 143 times where (i) is true. One of these is 12:00, which can be discounted, so that leaves 142 times over 12 hours. For example, 12:05.034... is indistinguishable from 1:00.41958..., and so on.

[MrRubix_MK5]

Re: MrRubix's Riddle Thread

You're in the right mindset, but, wrong