Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Permutations and Combinations question

2014 · Shift 2 · Q30
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Advanced
  3. /Mathematics
  4. /Permutations and Combinations
  5. /2014 · Shift 2 · Q30

Permutations and Combinations question

2014 · Shift 2 · Q30

JEE AdvancedMathematicsPermutations and CombinationsMCQ+3 / −1
Six cards and six envelopes are numbered 1, 2, 3, 4, 5, 6 and cards are to be placed in envelopes so that each envelope contains exactly one card and no card is placed in the envelope bearing the same number and moreover the card numbered 1 is always placed in envelope numbered 2. Then the number of ways it can be done is
  1. A
    264
  2. B
    265
  3. C
    53
  4. D
    67
PreviousNext

More from Permutations and Combinations

  • Consider the set of eight vectors V={ai^+bj^​+ck^:a,b,c∈{−1,1}}. Three non-coplanar vectors can be chosen from v in 2p ways. Then p is2013 · Numerical
  • The total number of ways in which 5 balls of different colours can be distributed among 3 persons so that each person gets at least one ball is2012 · MCQ
  • Let an​ denote the number of all n-digit positive integers formed by the digits 0, 1 or both such that no consecutive digits in them are 0.Let bn​= the number of such n-digit integers ending with digit 1 and cn​=the…2012 · MCQ
  • Let an​ denote the number of all n-digit positive integers formed by the digits 0, 1 or both such that no consecutive digits in them are 0.Let bn​= the number of such n-digit integers ending with digit 1 and cn​ =the…2012 · MCQ
  • The number of seven digit integers, with sum of the digits equal to 10 and formed by using the digits 1, 2 and 3 only, is2009 · MCQ
  • Let (x,y,z) be points with integer coordinates satisfying the system of homogeneous equation: 3x−y−z=0−3x+z=0−3x+2y+z=0​ Then the number of such…2009 · Numerical
  • Consider all possible permutations of the letters of the word ENDEANOEL. Match the Statements/Expressions in Column I with the Statements/Expressions in Column II. Includes table2008 · MCQ
  • Let the set of all relations R on the set {a,b,c,d,e,f}, such that R is reflexive and symmetric, and R contains exactly 10 elements, be denoted by S. Then the number of elements in S is ​…2025 · Numerical