The following text was written on the board: \(A869B\). Each of the
letters \(A\) and \(B\) must be replaced by one digit
(they may or may not be the same) so that the resulting five-digit
number is divisible by \(15\). In how many ways can you do this?
Uz tāfeles bija uzrakstīts šāds teksts: \(A869B\).
Katrs no burtiem \(A\) un \(B\) jāaizstāj ar vienu ciparu (tie var būt arī
vienādi) tā, lai iegūtais piecciparu skaitlis dalītos ar \(15\).
Cik dažādos veidos to var izdarīt?