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Home Aptitude Permutation and Combination Comments

  • Question
  • Find the number of ways to take 4 people and place them in groups of 3 at a time where order does not matter?


  • Options
  • A. 4
  • B. 12
  • C. 36
  • D. 16

  • Correct Answer


  • Explanation

    Since order does not matter, use the combination formula 

    C 3 4  = 24/6 = 4


  • Permutation and Combination problems


    Search Results


    • 1. 12 points lie on a circle. How many cyclic quadrilaterals can be drawn by using these points?

    • Options
    • A. 500
    • B. 490
    • C. 495
    • D. 540
    • Discuss
    • 2. Find the total number of distinct vehicle numbers that can be formed using two letters followed by two numbers. Letters need to be distinct

    • Options
    • A. 65000
    • B. 64000
    • C. 72000
    • D. 36000
    • Discuss
    • 3. In how many different ways can the letters of the word 'MATHEMATICS' be arranged so that the vowels always come together?

    • Options
    • A. 120960
    • B. 120000
    • C. 146700
    • D. None of these
    • Discuss
    • 4. In how many ways a committee, consisting of 5 men and 6 women can be formed from 8 men and 10 women?

    • Options
    • A. 11670
    • B. 12000
    • C. 11760
    • D. 20050
    • Discuss
    • 5. Suppose you can travel from a place A to a place B by 3 buses, from place B to place C by 4 buses, from place C to place D by 2 buses and from place D to place E by 3 buses. In how many ways can you travel ?from A to E?

    • Options
    • A. 36
    • B. 64
    • C. 74
    • D. 72
    • Discuss
    • 6. How many ways are there to deal a five-card hand consisting of three eight's and two sevens?

    • Options
    • A. 36
    • B. 72
    • C. 24
    • D. 16
    • Discuss
    • 7. In how many ways can the letters of the word ABACUS be rearranged such that the vowels always appear together?

    • Options
    • A. 4!/2!
    • B. 3!/2!
    • C. (4! x 3!) / 2!
    • D. 36
    • Discuss
    • 8. In how many ways can the letters of the word "PROBLEM" be rearranged to make 7 letter words such that none of the letters repeat?

    • Options
    • A. 49
    • B. 7!
    • C. 7^7
    • D. 7^3
    • Discuss
    • 9. There are fourteen juniors and twenty-three seniors in the Service Club. The club is to send four representatives to the State Conference. If the members of the club decide to send two juniors and two seniors, how many different groupings are possible ?

    • Options
    • A. 23024
    • B. 24023
    • C. 23023
    • D. 25690
    • Discuss
    • 10. From a deck of 52 cards, a 5 card hand is dealt.How many distinct hands can be formed if there are atleast 2 queens?

    • Options
    • A. 103336
    • B. 120000
    • C. 108336
    • D. 108333
    • Discuss


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