Question

Problem 3 in the problem set 2 .. it says to find largest number of McNuggets that cannot be bought in exact quantity . How can there be a largest number as it is infinite ?

Answer 1

I would advise you to read more carefully the problem set pdf. There is a reason why there is a largest number that cannot be bought, and it is said in the pdf itself.

Answer 2

it is not infinite.the numbe of macnuggets you can order are infinit. but there will be a numb which you can't get b combining an addng 6 9 and 20 in diffret was.e.g 2 20s an 2 6s make 52->so you can get exacty 52 macnuggts if you order 52. however if you order 11 macnuggets you can't get i for any cmbination of 6 9 and 20.
Just PS: the answer is 43