JEE Main & Advanced
Mathematics
Permutations and Combinations
Question Bank
Definition of combinations, Conditional combinations, Division into groups, Derangements
question_answer
How many numbers of 6 digits can be formed from the digits of the number 112233 [Karnataka CET 2004]
A)30
B)60
C)90
D)120
Correct Answer:
C
Solution :
Required number of ways\[=\frac{6!}{2\,!\,\,2!\,\,2!}=90\].