A) 8
B) 6
C) 7
D) 4
Correct Answer: A
Solution :
[a] There are eight options on first place (except the digits 0 and 2) and only one option at fourth place (digit '2'). Remaining three places can be occupied by any three digits out of 1, 3, 4, 5, 6, 7, 8 and 9. Number of such numbers \[=8\times 8\times 7\times 6=336\text{ }k\] \[\Rightarrow \,\,\,\,\,\,\,\,k=8\]You need to login to perform this action.
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