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Home Aptitude Permutation and Combination See What Others Are Saying!
  • Question
  • 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

  • Correct Answer
  • 120960 

    Explanation

    In the word 'MATHEMATICS', we treat the vowels AEAI as one letter.

     

    Thus, we have MTHMTCS (AEAI).

     

    Now, we have to arrange 8 letters, out of which M occurs twice, T occurs twice and the rest are different.

     

    Number of ways of arranging these letters = 8!/(2! x 2!)= 10080.

     

    Now, AEAI has 4 letters in which A occurs 2 times and the rest are different.

     

    Number of ways of arranging these letters =4!/2!= 12.

     

    Required number of words = (10080 x 12) = 120960


  • More questions

    • 1. 
      ? 10 x ? 15?

    • Options
    • A. 5?6
    • B. 6?5
    • C. 5
    • D. ?30
    • Discuss
    • 2. 
      ? 36.1 / 102.4 =?

    • Options
    • A. 29/32
    • B. 19/72
    • C. 19/32
    • D. 29/62
    • Discuss
    • 3. 
      ? 324/1.5 =?/ ? 256

    • Options
    • A. 192
    • B. 432
    • C. 288
    • D. 122
    • Discuss
    • 4. 
      ? (0.324 x 0.081 x 4.624) / (1.5625 x 0.0289 x 72.9 x 64) =?

    • Options
    • A. 24
    • B. 2.40
    • C. 0.024
    • D. None of these
    • Discuss
    • 5. 
      If ? 15625 = 125, then the value of [? 15625 + ? 156.25 + ? 1.5625] is?

    • Options
    • A. 1.3875
    • B. 13.875
    • C. 138.75
    • D. 156.25
    • Discuss
    • 6. 
      ? 0.01 + ?0.0064 =?

    • Options
    • A. 0.3
    • B. 0.03
    • C. ?0.18
    • D. None of these
    • Discuss
    • 7. 
      1/ (? 9 - ? 8) =?

    • Options
    • A. (3 - 2?2) / 2
    • B. 1/ (3 + 2?2)
    • C. (3- 2?2)
    • D. (3 + 2?2)
    • Discuss
    • 8. 
      The value of ? 0.064 is?

    • Options
    • A. 0.8
    • B. 0.08
    • C. 0.008
    • D. 0.252
    • Discuss
    • 9. 
      ? 176 + ?2401 =?

    • Options
    • A. 14
    • B. 15
    • C. 18
    • D. 24
    • Discuss
    • 10. 
      (? 32 + ? 48) / (? 8 + ? 12) =?

    • Options
    • A. ?2
    • B. 2
    • C. 4
    • D. 8
    • Discuss


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