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BITSAT 2016
Exam
BITSAT
Year
2016
Subject
Mathematics
Chapter
Permutation and Combination

BITSAT 2016 · Mathematics · Permutation and Combination

All the words that can be formed using alphabets A, H, L, U and R...

All the words that can be formed using alphabets A, H,L,UH, L, U and RR are written as in a dictionary (no alphabet is repeated). Rank of the word RAHUL is

Options

  1. A71
  2. B72
  3. C73
  4. D74

Correct answer

D. 74

Step-by-step solution

No. of words starting with A\mathrm{A} are 4!=244 !=24 No. of words starting with H\mathrm{H} are 4!=244 !=24 No. of words starting with LL are 4!=244 !=24 These account for 72 words Next word is RAHLU and the 74th 74^{\text{th }} word RAHUL
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