A mathematical conundrum has landed at our doorstep, courtesy of a football team's shirt numbers - a curious case indeed! We're tasked with dividing 10 players into three groups: defenders, midfielders, and forwards, with the sum of each group's shirt numbers being divisible by 11. Sounds like an impossible feat? Perhaps.
The coach has a clever idea to tackle this puzzle. By considering all possible combinations of the remaining numbers (excluding the goalkeeper's number 1), we can explore various formations that might satisfy the condition. A combination of trial and error, coupled with some logical thinking, may uncover the answer.
But that's not all - we have another brain-twister on our hands. When it comes to multiplying 11 by consecutive integers, palindromic results abound. What if we extend this sequence up to 11 x 99? Will there be any more answers that read the same forwards and backwards?
Lastly, a divisibility rule for 11 has been shared with us. By alternating addition and subtraction of the digits in a number, followed by multiplication and division, we can determine whether the original number is divisible by 11.
Using each digit from 0 to 9 exactly once, what's the largest possible 10-digit number that satisfies this condition? The puzzle is waiting for your solution.
The coach has a clever idea to tackle this puzzle. By considering all possible combinations of the remaining numbers (excluding the goalkeeper's number 1), we can explore various formations that might satisfy the condition. A combination of trial and error, coupled with some logical thinking, may uncover the answer.
But that's not all - we have another brain-twister on our hands. When it comes to multiplying 11 by consecutive integers, palindromic results abound. What if we extend this sequence up to 11 x 99? Will there be any more answers that read the same forwards and backwards?
Lastly, a divisibility rule for 11 has been shared with us. By alternating addition and subtraction of the digits in a number, followed by multiplication and division, we can determine whether the original number is divisible by 11.
Using each digit from 0 to 9 exactly once, what's the largest possible 10-digit number that satisfies this condition? The puzzle is waiting for your solution.