Question

Plz help me toSlove this....

Answer 1

Plz help me toSlove this..

Answer 2

Ya i got it....

Answer 3

I mean for the 1st 2 and last 3, can they repeat?

Answer 4

Tanx...@SolomonZelman

Answer 5

if they can't repeat.


1st 2 symbols. \[26~~~ nPr ~~~2\]last 3 symbols\[10~~~~nPr~~~~3\]

Answer 6

26*26*10*10*10=676000

Answer 7

So they can repeat?

Answer 8

If they can repeat, than you are correct.

Answer 9

Tanx to every one who responce to my question...