Question
Mathematics Question on permutations and combinations
If all the words (with or without meaning) having five letters, formed using the letters of the word SMALL and arranged as in a dictionary; then the position of the word SMALL is:
A
46th
B
59th
C
52th
D
58th
Answer
58th
Explanation
Solution
ALLMSA(LLMS)→2!4!=224=12
L(ALMS)→4!=24
M(ALLS)→2!4!=224=12
SA(MLL)→2!3!=3
SL(ALM)→3!=6
Total words =12+24+12+3+6=57
SMALL58th
∴ the position of the word SMALL is 58th