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2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math

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10212210 No.10212210 [Reply] [Original]

>> No.10212211 [DELETED] 

>>10212210
>(((Rabinowitz)))

>> No.10212218

>>10212210
Nope, clearly says right there in bold letters at the bottom that I can't use a computer to help me. If I'm reading the questions through a computer that counts as helping me solve the problem.

>> No.10212330

>>10212218
Use your brain CSfag

>> No.10212479
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10212479

This has to be fake. No 6th grader could do this without brute forcing it for an hour.

>> No.10212486

>>10212479
It says math project, so they have plenty of time to work on it

>> No.10212492

>>10212210
x/10 attempt to get /sci/ to solve your homework

>> No.10212500 [DELETED] 

>>10212210
>>10212479
How is this even remotely difficult? There are 998 true equations

>> No.10212513 [DELETED] 

>>10212210
>>10212486
How is this even remotely difficult? There is 0 equations summing to 1, 1 equation summing to 2,..., 998 equations summing to 999. Therefore there are 1+2+...+998 = 498501 true equations total

>> No.10212520 [DELETED] 

>>10212210
>>10212479
How is this even remotely difficult? There is 0 equations summing to 111 through 221, 1 equation summing to 222,..., 778 equations summing to 999. Therefore there are 1+2+...+778 = 303031 true equations total

>> No.10212523

>>10212210
>Date: December
Wow such accuracy

>> No.10212531

>>10212520
Wait, this is wrong I overcounted

>> No.10212533

>>10212210
No I can’t. I fucking suck at these problems

>> No.10212553

>>10212520
typical combinatorics brainlet

>> No.10212556

Fuck you Mr. Black it's not worth the one minute.

>> No.10212560

>>10212531
You can only use each number once, otherwise it's pointless.

One solution I found is 657+234=891, which you can rearrange a few times to get over an hour of time easily.

>> No.10212671

159+624=783

>> No.10212688

>>10212671
219+348=567

>> No.10212710

>>10212560
>>10212671
>>10212688
you can probably write a program to find them all

>> No.10212734

If I did the math right the sum must add up to 18.

>> No.10212772 [DELETED] 

>>10212210
>YOU MAY NOT USE A COMPUTER
Try and stop me bitch.
There's 336 possibilies (assuming a + b = c and b + a = c count as different equations, otherwise it's 168)

.

Python program that prints them all:

from itertools import permutations as perm

for p in perm([1, 2, 3, 4, 5, 6, 7, 8, 9]):
if (p[0] + p[3]) * 100 + (p[1] + p[4]) * 10 + p[2] + p[5] == p[6] * 100 + p[7] * 10 + p[8]:
print('{}{}{} + {}{}{} = {}{}{}'.format(*p))

>> No.10212776

>>10212734
What I meant by this is in the case of 219+348=567, 5+6+7=18.

>> No.10212784

>>10212210
>YOU MAY NOT USE A COMPUTER
Try and stop me bitch.
There's 336 possibilies (assuming a + b = c and b + a = c count as different equations, otherwise it's 168)

.

Python program that prints them all:

from itertools import permutations as perm

for p in perm(range(1,10)):
if (p[0] + p[3]) * 100 + (p[1] + p[4]) * 10 + p[2] + p[5] == p[6] * 100 + p[7] * 10 + p[8]:
print('{}{}{} + {}{}{} = {}{}{}'.format(*p))

>> No.10212799

>>10212734
>>10212776
wow, that's actually true
why is that?

>> No.10212824
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10212824

>>10212799

>> No.10212832

>>10212824
0/10 not in latex

>> No.10212846

>>10212784
import problemsolver as P
P.solveProblem()

god i'm so good at python

>> No.10212854

>>10212784
It's 168 (a + b = c is different from b + a = c). Must be embarrassing to get it wrong with a computer

>> No.10212856

>>10212846
low IQ post. I bet you could not have figured out the 4 lines necessary to do this, or even have done it with 8

>> No.10212858

>>10212856
lol ok nerd

>> No.10212875

>>10212854
>(a + b = c is different from b + a = c)
then it would be 336
it's 168 if they are concidered to be the same equation

>> No.10212881

>>10212875
No, retard. I just told you it's 168 with a + b = c is different from b + a = c, not 336. You made a mistake in such a simple program

>> No.10212892
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10212892

>>10212881

>> No.10212914

>>10212479
It's real.

>>10212486
I already know the answer. It's 163072. I wanted to see how many posers there were on /sci/. +1 with your post.

>> No.10212921

>>10212914
>163072
Bait. That's more than 9!/3

>> No.10212930

>>10212921
Ah I read the problem as only 1 digit per pane, not use all digits once only.

>> No.10212943

There's an 8 way symmetry by switching numbers vertically, so you can assume that each number in the top row is larger than the number directly under it, then just permute all the results.

>> No.10212954

>>10212881
I wrote in the original post that the answer is either 336 or 168 depending on how you interperet the problem.

You, however, seem to be making an additional mistake:

You think:
a+b=c and b+a=c are considered different --> answer is 168
a+b=c and b+a=c are considered the same --> answer is 336

While the reality is:
a+b=c and b+a=c are considered different --> answer is 336
a+b=c and b+a=c are considered the same --> answer is 168

>> No.10212960

>>10212210

The next generation will have higher intelligence than us

>> No.10212976

>>10212520
>use the digits 1 to 9 once
>once
congrats you're a brainlet

>> No.10212985

>>10212824
thanks for posting this, I feel pretty stupid for not seeing that

>> No.10213028

>>10212479
Can YOU do it without brute force? It asks you to list all the answers, I made lookup tables

>> No.10213508

>>10212210
There are 0 solutions.

Proof: The teacher is a filthy jew.

[math]
QED
[/math]

>> No.10213840

>>10212210
I counted 208 unique windows

>> No.10213919

>>10213840
following up, here are my answers.
for ABC + DEF = XYZ there are 8 possible ways to arrange ABC+DEF vertically (A with D, B with E, C with F) such that the sum is still XYZ.

That means for every XYZ, if I can show a unique AD BE CF then thats 8 more solutions.

Here is every one I could find:
1. 183+276=459
2. 176+295=468
3. 129+357=486
4. 127+368=495
5. 192+384=576
6. 218+439=657
7. 182+493=675
8. 291+384=675
9. 215+478=693
10. 362+489=751
11. 214+569=783
12. 273+546=819
13. 362+457=819
14. 192+645=837
15. 291+546=837
16. 362+579=841
17. 349+527=846
18. 291+573=864
19. 324+567=891
20. 273+645=918
21. 381+546=927
22. 182+754=936
23. 162+783=945
24. 317+628=945
25. 314+658=972
26. 324+657=981

26*8=208

>> No.10214062

>>10213919
update: the following ones are wrong
176+295=468
349+527=846
362+489=751
362+579=841

so that leaves 22 * 8 = 176
I know the answer should be 168 but I can't find which one of my answers is duplicate/wrong

>> No.10214068

>>10212954
reality is:
a+b=c and b+a=c are considered different --> answer is 168
a+b=c and b+a=c are considered the same --> answer is 84

>> No.10214308

>>10212210
Age of 6th grades kids? Not everyone is from the same country as you.

>> No.10214481

>>10214308
11-12