Math contest #9 Results and Solution

in #puzzle5 years ago

Solution:

The problem of the last contest was:
Screenshot from 2019-09-06 10-21-49.png
To find the solutions for this equation you need to think of ways to make both sides equal.
This can be done by:

  1. Setting y to zero and then find a way to make x⁰ = x^x
    This leads to the solutions (0, 0) and (1, 0)
  2. Assume y = z*x to make the equation simpler:
    x^(zx) = ((z+1)*x)^x
    x^z = (z+1)*x
    This leads to the solutions (2, 6), (-2, -6), (3, 6) and (-1, 2)

Mystery solution

The last contest also contained a secret message.
This message was encoded in the capital letters, similar to this:
tHis text contaIns a message → HI
Using that method I hid the following message in the contest:
CONGRATULATIONSYOUFOUNDITANDNOWTELLMEWHATYOUTHINKABOUTTHEMYSTERYDOYOUWANTMOREPROBLEMSLIKETHIS
Which is with a bit formatting:
Congratulations, you found it. And now tell me what you think about "The Mystery". Dou you want more problems like this?
↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓

What is your chance of winning:

p(You Win) = 1/n, n = number of entries

↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓

List of participants with their entries:

Namesolutions foundhidden message
@tonimontana(2, 6), (-2, -6), (3, 6), (0, 0)GOODSECRET
@sidekickmatt(1, 0), (-1, 2)SURE

Based on your responds to the message I will make similar problems in the future.

↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓

Winner draw(First 2 for the mistery, other 3 for the equation):
Screenshot from 2019-09-15 15-47-54.png
That makes 2 SBI for @tonimontana and 3 SBI for @sidekickmatt:
Screenshot from 2019-09-15 17-32-06.png

↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓↑↓

The next contest starts in 2 days. Don't miss it!

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