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Permutation of n objects taken r at a time

Quiz by Rey Alferez Fernandez

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10 questions
Show answers
  • Q1
    A password consists of 3 distinct characters that can be chosen from the 26 alphabets. How many different passwords are possible?
    17550
    15600
    1300
    19500
    30s
  • Q2
    A group of people are going on a tour. If there are 4 different locations to visit and they can visit each location only once, in how many ways can the group choose the order of locations to visit?
    24
    12
    4
    16
    30s
  • Q3
    In a letter to her 5 friends, Alice wants to include a photo. If she has 7 photos to choose from, how many different ways can she include one photo with the letter?
    5
    21
    35
    7
    30s
  • Q4
    A school is selecting a president, vice president, and treasurer from a student council of 10 members. How many possible sets of officers are there?
    720
    840
    360
    500
    30s
  • Q5
    Six friends are to sit in a row. How many possible arrangements are there?
    36
    120
    500
    720
    30s
  • Q6
    In a class of 20 students, a team of 4 will be selected for a debate competition. In how many ways can this team be selected?
    4845
    690
    1600
    1160
    30s
  • Q7
    If there are 8 runners in a race and the top 3 positions (1st, 2nd, 3rd) get medals, how many different ways can the medals be awarded?
    56
    24
    96
    336
    30s
  • Q8
    A locker combination consists of 3 digits from 0-9. If no digits can be repeated, how many different combinations are possible?
    300
    720
    500
    120
    30s
  • Q9
    In how many ways can 5 different books be arranged on a shelf?
    30
    120
    100
    25
    30s
  • Q10
    A committee of 5 members is to be formed from a group of 9 people. How many different committees can be formed?
    45
    504
    36
    126
    30s

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