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

2020 · 2 Sep · Shift 2 · Q27
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Mathematics
  4. /Permutations and Combinations
  5. /2020 · 2 Sep · Shift 2 · Q27

Permutations and Combinations question

2020 · 2 Sep · Shift 2 · Q27

JEE MainMathematicsPermutations and CombinationsMCQ+4 / −1
Let n > 2 be an integer. Suppose that there are n Metro stations in a city located along a circular path. Each pair of stations is connected by a straight track only. Further, each pair of nearest stations is connected by blue line, whereas all remaining pairs of stations are connected by red line. If the number of red lines is 99 times the number of blue lines, then the value of n is :
  1. A
    201
  2. B
    199
  3. C
    101
  4. D
    200
PreviousNext

More from Permutations and Combinations

  • The value of (2.1P0 – 3.2P1 + 4.3P2 .... up to 51th term) + (1! – 2! + 3! – ..... up to 51th term) is equal to :2020 · MCQ
  • The total number of 3-digit numbers, whose sum of digits is 10, is ​.2020 · Numerical
  • A test consists of 6 multiple choice questions, each having 4 alternative answers of which only one is correct. The number of ways, in which a candidate answers all six questions such that exactly four of the answers are correct, is ​…2020 · Numerical
  • The number of words, with or without meaning, that can be formed by taking 4 letters at a time from the letters of the word ’SYLLABUS’ such that two letters are distinct and two letters are alike, is :2020 · Numerical
  • Four fair dice are thrown independently 27 times. Then the expected number of times, at least two dice show up a three or a five, is ​.2020 · Numerical
  • There are 3 sections in a question paper and each section contains 5 questions. A candidate has to answer a total of 5 questions, choosing at least one question from each section. Then the number of ways, in which the candidate can choose…2020 · MCQ
  • Two families with three members each and one family with four members are to be seated in a row. In how many ways can they be seated so that the same family members are not separated?2020 · MCQ
  • The number of words (with or without meaning) that can be formed from all the letters of the word “LETTER” in which vowels never come together is ​ .2020 · Numerical