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  • Question
  • A school committee of 5 is to be formed from 12 students.How many committees can be formed if John must be on the committee?


  • Options
  • A. 11P4
  • B. 11C4
  • C. 11P5
  • D. 11C5

  • Correct Answer
  • 11C4 

    Explanation

    If John must be on the committee,we have 11 students remaining,out of which we choose 4. So, 11 C 4


  • Permutation and Combination problems


    Search Results


    • 1. How many ways can you select 17 songs for mix CD out of possible 38 songs?

    • Options
    • A. 2878
    • B. 2878 x 10^2
    • C. 290183753
    • D. 2878 x 10^10
    • Discuss
    • 2. A pizza can have 3 toppings out of possible 7 toppings.How many different pizza's can be made?

    • Options
    • A. 49
    • B. 35
    • C. 27
    • D. 25
    • Discuss
    • 3. A committee of 4 people is to be formed from a group of 9 people.How many possible committees can be formed?

    • Options
    • A. 120
    • B. 162
    • C. 126
    • D. 170
    • Discuss
    • 4. Goldenrod and No Hope are in a horse race with 6 contestants. How many different arrangements of finishes are there if No Hope always finishes before Goldenrod and if all of the horses finish the race?

    • Options
    • A. 720
    • B. 360
    • C. 120
    • D. 640
    • Discuss
    • 5. In how many ways, can zero or more letters be selected form the letters AAAAA?

    • Options
    • A. 5
    • B. 6
    • C. 2
    • D. 8
    • Discuss
    • 6. From a deck of 52 cards, a 7 card hand is dealt.How many distinct hands are there if the hand must contain 2 spades and 3 diamonds ?

    • Options
    • A. 7250100
    • B. 7690030
    • C. 7250000
    • D. 3454290
    • Discuss
    • 7. From a deck of 52 cards, a 5 card hand is dealt.How may distinct five card hands are there if the queen of spades and the four of diamonds must be in the hand?

    • Options
    • A. 52C5
    • B. 50C3
    • C. 52C4
    • D. 50C4
    • Discuss
    • 8. In how many ways can you choose one or more of 12 different candies?

    • Options
    • A. 4054
    • B. 4050
    • C. 4095
    • D. 4059
    • Discuss
    • 9. How many 3 letters words can be formed using the letters of the words hexagon?

    • Options
    • A. 120
    • B. 210
    • C. 160
    • D. 200
    • Discuss
    • 10. In how many different ways can 3 students be associated with 4 chartered accountants,assuming that each chartered accountant can take at most one student?

    • Options
    • A. 12
    • B. 36
    • C. 24
    • D. 16
    • Discuss


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