NCERT class 11 maths chapter 7 Permutations and Combinations
Question 1:If nC8 = nC2, find nC2.
Exercise 7.4 maths class 11 Chapter 7 Permutations and Combinations
Question 2:Determine n if (i) 2nC3 : nC3 = 12 : 1 (ii) 2nC3 : nC3 = 11 : 1
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Question 3:How many chords can be drawn through 21 points on a circle?
class 11 maths solutions Permutations and Combinations
Question 4:In how many ways can a team of 3 boys and 3 girls be selected from 5 boys and 4 girls?
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Question 5:Find the number of ways of selecting 9 balls from 6 red balls, 5 white balls and 5 blue balls if each selection consists of 3 balls of each colour.
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Question 6:Determine the number of 5 card combinations out of a deck of 52 cards if there is exactly one ace in each combination.
class 11 Maths NCERT Solutions Chapter 7 Permutations and Combinations Exercise 7.4
Question 7:In how many ways can one select a cricket team of eleven from 17 players in which only 5 players can bowl if each cricket team of 11 must include exactly 4 bowlers?
Exercise 7.4 class 11 Math ncert solutions Chapter 7
Question 8:A bag contains 5 black and 6 red balls. Determine the number of ways in which 2 black and 3 red balls can be selected.
Question 9:In how many ways can a student choose a programme of 5 courses if 9 courses are available and 2 specific courses are compulsory for every student?
