Explanation for the uneducated mind

  • Thread starter Thread starter Andy
  • Start date Start date
  • Tags Tags
    Explanation Mind
AI Thread Summary
The discussion revolves around finding the largest nine-digit number using any nine of the ten digits (0-9) that is divisible by 11. The correct answer is identified as 987652413, with a user named dduardo credited for getting it right. Participants express confusion over the reasoning behind this solution and acknowledge misinterpretation of the question. The conversation highlights the challenge of the brain teaser and the importance of understanding the criteria for divisibility by 11. Ultimately, the focus remains on the correct answer and the reasoning behind it.
Andy
Messages
73
Reaction score
14
Origionally Posted By Greg
Can you find the largest number possible containing any of 9 of 10 digits, considering 0 also a number, that is divisible by 11 without a reminder?

Origionally posted by Greg
987652413 is the answer, dduardo gets the point! :)

This was a Brain teaser question, and i have no idea whatsoever why this is the correct answer.

As i said in the thread title an uneducated mind
 
Mathematics news on Phys.org
Why not just check all combinations in a computer? It won't take very long.
 
I guess the idea was to find the biggest 9 digit number divisible by 11 that contains every digit only once.
Although I did't understood at first glance and answered 9999999999.
 
Origionally Posted By Guybrush
I guess the idea was to find the biggest 9 digit number divisible by 11 that contains every digit only once.

Yea, dunce here read the question wrong, like you.
 
Thread 'Video on imaginary numbers and some queries'
Hi, I was watching the following video. I found some points confusing. Could you please help me to understand the gaps? Thanks, in advance! Question 1: Around 4:22, the video says the following. So for those mathematicians, negative numbers didn't exist. You could subtract, that is find the difference between two positive quantities, but you couldn't have a negative answer or negative coefficients. Mathematicians were so averse to negative numbers that there was no single quadratic...
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. In Dirac’s Principles of Quantum Mechanics published in 1930 he introduced a “convenient notation” he referred to as a “delta function” which he treated as a continuum analog to the discrete Kronecker delta. The Kronecker delta is simply the indexed components of the identity operator in matrix algebra Source: https://www.physicsforums.com/insights/what-exactly-is-diracs-delta-function/ by...
Thread 'Unit Circle Double Angle Derivations'
Here I made a terrible mistake of assuming this to be an equilateral triangle and set 2sinx=1 => x=pi/6. Although this did derive the double angle formulas it also led into a terrible mess trying to find all the combinations of sides. I must have been tired and just assumed 6x=180 and 2sinx=1. By that time, I was so mindset that I nearly scolded a person for even saying 90-x. I wonder if this is a case of biased observation that seeks to dis credit me like Jesus of Nazareth since in reality...
Back
Top