MauryanBroski yeah ur right, bc happy and grumpy and alternate between each two seats bc it doesn't matter if grumpy is left or right of happy, and there are 6 of these combinations, so 6x2 is right, then of course the factorial of 5 is 120 so times them and 1440. Good job, also sui this is also an explanation for u. I do have one question though, i am rlly bad at these questions: how many different numbers from 4,5,6,7,8,9 can be made so that they are larger than 6000 and there is no repetition of numbers?