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Misc 8 - Determine number of 5 card combinations if each has 1 king

Misc 8 - Chapter 7 Class 11 Permutations and Combinations - Part 2

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Misc 8 Determine the number of 5-card combinations out of a deck of 52 cards if each selection of 5 cards has exactly one king. There are total 4 King Cards out of 52 We have to select 1 King from 4 King cards The Remaining 4 we have to select from 48 cards (52 − 4 king cards) Total number of ways = 4C1 × 48C4 = 4!/1!(4 − 1)! × 48!/4!(48 − 4)! = 4!/1!3! × 48!/4!44! = 48!/(3! × 44!) = (48 × 47 × 46 × 45 × 44!)/((3 × 2 × 1) × 44!) = 778320

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.