Mathematics puzzle
-
- Posts: 2126
- Joined: Thu Jan 21, 2016 7:57 am
- Been Liked: 895 times
- Has Liked: 134 times
Mathematics puzzle
for the intellectual ones
four ships left a port at noon January 2 1953
the first ship returns to this port every 4 weeks
the second ship every 8 weeks
the 3rd ship every 12 weeks
the fourth ship every 16 weeks
what date did all four ships meet again at the port.
four ships left a port at noon January 2 1953
the first ship returns to this port every 4 weeks
the second ship every 8 weeks
the 3rd ship every 12 weeks
the fourth ship every 16 weeks
what date did all four ships meet again at the port.
-
- Posts: 67895
- Joined: Thu Dec 24, 2015 3:07 pm
- Been Liked: 32546 times
- Has Liked: 5279 times
- Location: Burnley
- Contact:
Re: Mathematics puzzle
Has to be 48 weeks - first number divisible by both 12 & 16. Therefore codger’s answer of 4th December is correct.
-
- Posts: 2126
- Joined: Thu Jan 21, 2016 7:57 am
- Been Liked: 895 times
- Has Liked: 134 times
Re: Mathematics puzzle
well done guys. there was me thinking it was difficult
-
- Posts: 2126
- Joined: Thu Jan 21, 2016 7:57 am
- Been Liked: 895 times
- Has Liked: 134 times
Re: Mathematics puzzle
got another one.
a woman was carrying a basket of eggs. a passerby bumped into her and she dropped the basket and all the eggs broke.
the passerby wanted to pay for the eggs and asked
"how many eggs were in your basket"
i dont remember exactly said the woman but i do recall that whether i divided the eggs by 2,3,4,5 or 6 there was always 1 egg left over.
when i took the eggs out in groups of 7 i emptied the basket.
What is the least number of eggs that broke.
a woman was carrying a basket of eggs. a passerby bumped into her and she dropped the basket and all the eggs broke.
the passerby wanted to pay for the eggs and asked
"how many eggs were in your basket"
i dont remember exactly said the woman but i do recall that whether i divided the eggs by 2,3,4,5 or 6 there was always 1 egg left over.
when i took the eggs out in groups of 7 i emptied the basket.
What is the least number of eggs that broke.
Re: Mathematics puzzle
Was the port in Spain
-
- Posts: 67895
- Joined: Thu Dec 24, 2015 3:07 pm
- Been Liked: 32546 times
- Has Liked: 5279 times
- Location: Burnley
- Contact:
Re: Mathematics puzzle
If I’ve worked this out correctly it must have been a big basket.
I’ve got an answer if 301.
I’ve got an answer if 301.
-
- Posts: 2126
- Joined: Thu Jan 21, 2016 7:57 am
- Been Liked: 895 times
- Has Liked: 134 times
Re: Mathematics puzzle
well done tony. im giving up. you are too good
-
- Posts: 18097
- Joined: Thu Jan 21, 2016 10:35 am
- Been Liked: 3875 times
- Has Liked: 2073 times
Re: Mathematics puzzle
77 for the 2nd question.
-
- Posts: 67895
- Joined: Thu Dec 24, 2015 3:07 pm
- Been Liked: 32546 times
- Has Liked: 5279 times
- Location: Burnley
- Contact:
Re: Mathematics puzzle
It has to end in an odd number to be one more than divisible by 2 and that left only numbers ending in 1 to be one more than divisible by 5. So I worked from there with numbers divisible by 7.
-
- Posts: 3625
- Joined: Thu Jan 14, 2016 2:03 pm
- Been Liked: 895 times
- Has Liked: 1104 times
- Location: Solihull Geriatric Centre
Re: Mathematics puzzle
76 is not divisible by either 3, 5 or 6
-
- Posts: 18097
- Joined: Thu Jan 21, 2016 10:35 am
- Been Liked: 3875 times
- Has Liked: 2073 times
Re: Mathematics puzzle
Factorisation. Using factors the lowest number divisible by 2,3,4,5,6 is 60. The number of eggs would be 60+1, but 61 doesn't divide by 7.
So try it with 120 (121 doesn't divide by 7) then 180 then 240 and finally 300, which divides by 2,3,4,5,6 and then add 1 to get 301 which divides by 7.
So try it with 120 (121 doesn't divide by 7) then 180 then 240 and finally 300, which divides by 2,3,4,5,6 and then add 1 to get 301 which divides by 7.
Re: Mathematics puzzle
... or small eggs.ClaretTony wrote: ↑Tue Apr 13, 2021 5:34 pmIf I’ve worked this out correctly it must have been a big basket.
I’ve got an answer if 301.
-
- Posts: 8050
- Joined: Thu Jul 14, 2016 2:38 pm
- Been Liked: 2416 times
- Has Liked: 2115 times
Re: Mathematics puzzle
No wonder she dropped it
Re: Mathematics puzzle
I wouldn't want to Spot the Ball among that lot
-
- Posts: 8050
- Joined: Thu Jul 14, 2016 2:38 pm
- Been Liked: 2416 times
- Has Liked: 2115 times
-
- Posts: 1809
- Joined: Thu Jan 21, 2016 9:27 am
- Been Liked: 333 times
- Has Liked: 788 times
Re: Mathematics puzzle
301 eggs...that's some omelette. SD must have some player in mind if he's serving that up!
This user liked this post: ClaretTony
Re: Mathematics puzzle
Assuming small eggs at 55g each thats 16 1/2 kilos of eggy messSuratclaret wrote: ↑Wed Apr 14, 2021 12:06 pm301 eggs...that's some omelette. SD must have some player in mind if he's serving that up!
Re: Mathematics puzzle
Maybe he's having BFS round for dinnerSuratclaret wrote: ↑Wed Apr 14, 2021 12:06 pm301 eggs...that's some omelette. SD must have some player in mind if he's serving that up!
This user liked this post: Bosscat
-
- Posts: 2126
- Joined: Thu Jan 21, 2016 7:57 am
- Been Liked: 895 times
- Has Liked: 134 times
Re: Mathematics puzzle
another puzzle. can anyone get it right before CT i ask
3 brothers shared 24 apples each getting a number equal to his age 3 years before. the youngest one proposed a swap
" i will keep only half the apples i got, and divide the rest between you two equally. But then the middle brother, keeping half his accumulated apples must divide the rest between the oldest brother and me, and then the oldest brother must do the same"
They agreed. the result was that each ended up with 8 apples.
How old were the brothers ?
3 brothers shared 24 apples each getting a number equal to his age 3 years before. the youngest one proposed a swap
" i will keep only half the apples i got, and divide the rest between you two equally. But then the middle brother, keeping half his accumulated apples must divide the rest between the oldest brother and me, and then the oldest brother must do the same"
They agreed. the result was that each ended up with 8 apples.
How old were the brothers ?
Re: Mathematics puzzle
11 year old triplets would work.pushpinpussy wrote: ↑Wed Apr 14, 2021 4:42 pmanother puzzle. can anyone get it right before CT i ask
3 brothers shared 24 apples each getting a number equal to his age 3 years before. the youngest one proposed a swap
" i will keep only half the apples i got, and divide the rest between you two equally. But then the middle brother, keeping half his accumulated apples must divide the rest between the oldest brother and me, and then the oldest brother must do the same"
They agreed. the result was that each ended up with 8 apples.
How old were the brothers ?
In fact I think that's the only thing that would work.
-
- Posts: 2126
- Joined: Thu Jan 21, 2016 7:57 am
- Been Liked: 895 times
- Has Liked: 134 times
-
- Posts: 1870
- Joined: Sat Jan 23, 2016 1:33 pm
- Been Liked: 384 times
- Has Liked: 236 times
- Location: Skipton
Re: Mathematics puzzle
Mr. Smith is a bank manager.
You have to help him because he has forgotten the combination number of the safe of the bank. Fortunately, he does remember some things about the number which may help you to help him.
•The number has four digits (eg.1234 or 9876).
•All the digits are different.
•It begins and ends with an odd number and has two even numbers in the middle.
•19 and 519 divide it exactly.
What is the number which will open the safe?
You have to help him because he has forgotten the combination number of the safe of the bank. Fortunately, he does remember some things about the number which may help you to help him.
•The number has four digits (eg.1234 or 9876).
•All the digits are different.
•It begins and ends with an odd number and has two even numbers in the middle.
•19 and 519 divide it exactly.
What is the number which will open the safe?
-
- Posts: 1227
- Joined: Sat Jan 23, 2016 9:55 pm
- Been Liked: 302 times
- Has Liked: 733 times
Re: Mathematics puzzle
9861 - product of 519 x 19 so obviously divisible by both.
Last edited by aclaretinstevenage on Wed Apr 14, 2021 5:18 pm, edited 1 time in total.
This user liked this post: Zlatan
-
- Posts: 67895
- Joined: Thu Dec 24, 2015 3:07 pm
- Been Liked: 32546 times
- Has Liked: 5279 times
- Location: Burnley
- Contact:
Re: Mathematics puzzle
Youngest must receive a multiple of 8 apples to ensure he can make his division. It has to be 4 otherwise he wouldn’t be the youngest.
The second receives 1 apple from the youngest and that must take him to a multiple of 4 so he started with 7 which means the oldest had 13 to start.
So ages are 7, 10 & 16.
Re: Mathematics puzzle
It's the word "accumulated" that fooled me. I might try again in a few hours.
Re: Mathematics puzzle
7 - 10 - 16
The trick is to start with the youngest one having 4 (because if they aren't triplets, that's the only other multiple of 4 that he can have) and work from there. We know the other two must start with 20 between them because there are 24 in total. There aren't that many options.
-
- Posts: 67895
- Joined: Thu Dec 24, 2015 3:07 pm
- Been Liked: 32546 times
- Has Liked: 5279 times
- Location: Burnley
- Contact:
Re: Mathematics puzzle
See two posts above yours dsrdsr wrote: ↑Wed Apr 14, 2021 5:16 pm7 - 10 - 16
The trick is to start with the youngest one having 4 (because if they aren't triplets, that's the only other multiple of 4 that he can have) and work from there. We know the other two must start with 20 between them because there are 24 in total. There aren't that many options.
Re: Mathematics puzzle
I see it now. Was that an edited version in between when I first read it and when I posted at 5.15? Because I didn't see it then! Of course, it may be old age and senility.
(Mine or yours! )
-
- Posts: 2126
- Joined: Thu Jan 21, 2016 7:57 am
- Been Liked: 895 times
- Has Liked: 134 times
Re: Mathematics puzzle
i believe CT got it right again.
Re: Mathematics puzzle
Mr Smith is f.....g idiot!Im_not_Robbie_Blake wrote: ↑Wed Apr 14, 2021 5:05 pmMr. Smith is a bank manager.
You have to help him because he has forgotten the combination number of the safe of the bank. Fortunately, he does remember some things about the number which may help you to help him.
•The number has four digits (eg.1234 or 9876).
•All the digits are different.
•It begins and ends with an odd number and has two even numbers in the middle.
•19 and 519 divide it exactly.
What is the number which will open the safe?
Why doesn't he just use the year Burnley last won the league, 5960.
Anyway, which bank does he manage?
-
- Posts: 1870
- Joined: Sat Jan 23, 2016 1:33 pm
- Been Liked: 384 times
- Has Liked: 236 times
- Location: Skipton
Re: Mathematics puzzle
claretinstevenage got the bank safe right, having spotted that you only really need the 4th bullet point in order to solve it.
This user liked this post: aclaretinstevenage
Re: Mathematics puzzle
The local shop loves him!
There are eggs all over the floor at home and a hell of a big basket!
Re: Mathematics puzzle
This is important, isn't it.?
What size basket is required to carry 301 chicken eggs?
From the question we are assuming that we are talking about chicken eggs. A typical chicken egg has a volume of 50ml, or 50cm3. Of course when packing them there will be space between them so let's assume 60cm3 per egg. Times 301 that makes a volume of 18,060cm3.
We are not told anything of the basket size but let's assume that it was one of those weaved shopping basket our Grandmothers would have used. I found one on Amazon:
https://www.amazon.co.uk/Prestige-Wicke ... sic&sr=1-5
It's volume is 28,800cm3, more then adequate for our 301 eggs. Indeed our eggs could occupy 95cm3 each and still be accommodated in the basket.
There's still the question of weight. I assume it must have been Geoff Cape's mother doing the shopping. That would explain how they were carried and why so many eggs were needed.
This user liked this post: Bosscat