Theo bài ra ta có:abc-cba=297
\(\Rightarrow100a+10b+c-100c-10b-a=297\)
\(\Rightarrow99.\left(a-c\right)=297\)
\(\Rightarrow a-c=3\)
vì abc\(⋮5\)\(\Rightarrow c=0;5\)
\(c=0\Rightarrow a=3\Rightarrow b=6\Rightarrow\)abc=360
\(c=5\Rightarrow a=8\Rightarrow b=5\Rightarrow abc=855\)