Permutations And Combinations Question 268
Question: The numbers of arrangements of the letters of the word SALOON, if the two O’s do not come together, is
Options:
A) 360
B) 720
C) 240
D) 120
Correct Answer: C Total number of arrangements are $ \frac{6!}{2!}=360 $ . The number of ways in which $ …+{{}^{2n+1}}C_{n}+{{}^{2n+1}}C_{n+1}) $ come together $ =5!=120 $ . Hence required number of ways = $ 360-120=240 $ .
Show Answer
Answer:
Solution:
BETA
