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Permutation and Combination problems


  • 1. 
    Find the value of 5 P 2.

  • Options
  • A. 15
  • B. 18
  • C. 20
  • D. 122
  • Discuss
  • 2. 
    If 50c r = 50c r + 2 find r.

  • Options
  • A. 24
  • B. 23
  • C. 22
  • D. 21
  • Discuss
  • 3. 
    If nP 3 = 9240, then find the value of n.

  • Options
  • A. 20
  • B. 21
  • C. 22
  • D. 23
  • Also asked in: Bank Exams, Bank PO

  • Discuss
  • 4. 
    In how many different ways, can the letters of the word 'INHALE' be arranged?

  • Options
  • A. 720
  • B. 360
  • C. 120
  • D. 650
  • Discuss
  • 5. 
    In how many ways, the letters of the word 'ARMOUR' can be arranged?

  • Options
  • A. 720
  • B. 300
  • C. 640
  • D. 350
  • Discuss
  • 6. 
    In how many ways, the letters of the word 'STRESS' can be arranged?

  • Options
  • A. 360
  • B. 240
  • C. 720
  • D. 120
  • Discuss
  • 7. 
    In how many ways, the letters of the word 'BANKING' can be arranged?

  • Options
  • A. 5040
  • B. 2540
  • C. 5080
  • D. 2520
  • Discuss
  • 8. 
    In how many different ways, the letters of word 'FINANCE' can be arranged?

  • Options
  • A. 5040
  • B. 2040
  • C. 2510
  • D. 4080
  • Discuss
  • 9. 
    In how many different ways, can the letters of the word 'VENTURE' be arranged?

  • Options
  • A. 840
  • B. 5040
  • C. 1260
  • D. 2520
  • Discuss
  • 10. 
    In a meeting between two countries, each country has 12 delegates. All the delegates of one country shake hands with all delegates of the other country. Find the number of handshakes possible?

  • Options
  • A. 72
  • B. 144
  • C. 288
  • D. 234
  • Discuss

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