query: How many ways are there to select a pair of cards
positive_passages.docid: 150517
positive_passages.text: How many ways are there to select a pair of cards from a standard deck of cards such that one of the cards is red and the other one is black?
negative_passages.docid: 33639
negative_passages.text: In how many ways can $2n$ players be paired?
negative_passages.docid: 149744
negative_passages.text: How can I determine the number of unique hands of size H for a given deck of cards?
negative_passages.docid: 158650
negative_passages.text: Is  "choose from one of four options" wrong?
negative_passages.docid: 57822
negative_passages.text: Number of ways to choose two disjoint subsets of a set
negative_passages.docid: 16126
negative_passages.text: How can I tell the difference between early Magic: The Gathering card editions?
negative_passages.docid: 65505
negative_passages.text: Any way to do DISTINCT ON?
negative_passages.docid: 74915
negative_passages.text: Deck Of Cards - 12 Card Hands
negative_passages.docid: 43104
negative_passages.text: How should the "and/or" text of a card be interpreted?
negative_passages.docid: 89145
negative_passages.text: Card doubling paradox
negative_passages.docid: 69314
negative_passages.text: Pokemon cards with the same name and different features
negative_passages.docid: 84917
negative_passages.text: Four balls with different colors in a box, how many times do I need to pick to see all four colors?
negative_passages.docid: 12046
negative_passages.text: No. of ways to choose $n$ things from $n$ alike "a" things $n$ alike "b" things and $n$ different things.
negative_passages.docid: 123447
negative_passages.text: Does a card have a keyword if it has the same effect as said keyword?
negative_passages.docid: 5737
negative_passages.text: Is putting a Draw 4 card on top of a Draw 2 card legal?
negative_passages.docid: 116626
negative_passages.text: How to choose between an odd number of options with a fair coin
negative_passages.docid: 154561
negative_passages.text: Finding number of ways of selecting 6 gloves each of different colour from 18 gloves?