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One Out of Six

Trick brain teasers appear difficult at first, but they have a trick that makes them really easy.


Puzzle ID:#46635
Fun:** (1.82)
Difficulty:* (0.81)
Submitted By:sashomarineAus*****
Corrected By:Smithy




Rolling three once on a regular die is 1/6 likely. Rolling three twice in a row on a regular die is 1/36 likely. How likely is it that your next roll on the same die will be a three?

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Apr 02, 2010

Good Teaser, Had to use the hint to get it.....
Apr 02, 2010

not so hard I got it on my own not so fu to do
Apr 03, 2010

I hope this gets corrected quickly! It doesn't look good to have had this maths approved. Two consecutive 3s has a probability of 1/36, not 1/12. An easy but still fun, standard question.
Apr 04, 2010

Yes, I agree with the above poster.
A bit easy, but it made me think. I didn't use the hint, but if one had, they would have gotten the teaser very fast.
Well, it's nice to have another Trick teaser. This category doesn't get very many new ones.
Apr 04, 2010

Someone is already correcting it for me. Happy Easter everyone!
Apr 05, 2010

the law of averages......
Apr 08, 2010

Uhh... I've seen this teaser way before it appeared here...
Apr 08, 2010

not the best 1, but who am i to judge?
Apr 09, 2010

Keep Life Simple. 1/6 Makes Sense for the situation, but for Pure Math, maybe not.
Good job..
Apr 09, 2010

At first I thought is 1/12... Now it's actually 1/6 Great teaser!
Apr 22, 2010

Very easy, I think the hint gives too much away.. although i solved it without
Apr 26, 2010

I still dont get it..........not a math guy.
Apr 28, 2010

Pretty easy. I got it right away.
Jun 01, 2010

yay! trick teasers are my favorites because I always get them right and if I miss one I'm like oohhhhhh. luckily I got this right even without the hint.
Jun 21, 2010

I don't understand it at all,and i'm the smartest girl in TEXAS!!!!!!!!!!!!!!!
Jul 29, 2010

Haha, figured it out.
The chances doesn't mean it happened.
You might get a 1 at the first time, and a 4 in the second, he didn't say "3 three times in a row", he just said "a 3 the third time"
Anyone understands what i'm saying? :/
Sep 12, 2010

I love tricks. They can be so easy!
Jan 08, 2011

Close to a year after it's been made and it still hasn't been corrected. 1/6*1/6 = 1/36, not 1/12. Did the people who approved this teaser pass grade 10 math?
Nov 04, 2011

i thought it was 1/6 then i thought i was wrong but i was right!
Nov 21, 2011

Yes, someone please correct the math here.
Mar 23, 2013

Sorry guys, I don't know what's taking so long...
Jun 10, 2013

I just thought they were trick dice.
May 15, 2014

2nd comment and 3rd comment look at last sentence carefully. it doesnt say3 consecutive threes,it says a three.
Jan 29, 2015

May 26, 2015

It does say that it's 3 consecutive rolls.
"Rolling three twice in a row" and "your next roll" imply that all three rolls are consecutive. The maths is wrong.

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