How many cards must be chosen from a standard deck of 52 cards to guarantee that there are at least two cards of the same kind?

Question

The answer is 14.
But there are four kind of cards.(spades,heart,diamond,chidi)
So there must be 5 pick up to ensure the same kind condition.

Comments

kind means number so ( 1 2 3 .... 13)   14th will repeat any one of these so it is 14

Answer 1

yes. 5 should be the answer. 14 would be the answer for "at least 2 cards of different kind".

Comments

thanks.

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How the answer is 14? If we pick 1 card from 4 suit and 1 from any 4 suit then the number of combinations is 13C1*13C1*13C1*13*2 not 14