Question 27
The numbers 1 to 50 are printed on 50 cards and put in a bag. Miguel was blindfolded and asked to draw cards in the bag until he gets a sum of 30 in any two cards drawn. At least how many cards should he draw to meet this condition?
Interpretation note (editorial): find the number that guarantees the condition in the worst case.
Interpretation note (editorial): find the number that guarantees the condition in the worst case.