Permutations And Combinations Question 356
Question: A seven digit number divisible by 9 is to be formed by using 7 out of number $ {1,2,3,4,5,6,7,8,9} $ . The number of ways in which this can be done is
Options:
A) $ 7! $
B) $ 2\times 7! $
C) $ 3\times 7! $
D) $ 4\times 7! $
Correct Answer: D
Show Answer
Answer:
Solution:
BETA
