NCERT Example 19 - Permutations and Combinations
Question: From a 52-card deck, find the number of 4-card hands that are (i) all same suit, (ii) one from each suit, (iii) all face cards, (iv) two red and two black, (v) all same colour.
Answer: (i) 2860; (ii) 28,561; (iii) 495; (iv) 105,625; (v) 29,900.
Full step-by-step NCERT solution with diagrams on Something by Zero.