First, in what sense is this order of the numbers from 1 to 10 palindromic, (that is, reading the same from left to right as right to left)?
1 4 3 5 10 2 6 9 8 7
Second, if you rotate the number 6 by 180 degrees you get the number 9. What is the largest increase possible by rotating a number by 90 degrees?
As ever, please do NOT post your answers, but feel free to say if you think you have the solutions and how long it took.
Answers on Monday.