Permutations And Combinations Question 273
Question: The number of numbers that can be formed with the help of the digits 1, 2, 3, 4, 3, 2, 1 so that odd digits always occupy odd places, is [RPET 1988, 1991, 1992]
Options:
A) 24
B) 18
C) 12
D) 30
 Correct Answer: BShow Answer
  Answer:
Solution:
 BETA
  BETA 
             
             
           
           
           
          