Question

Ребят, помогите, пожалуйста

Answer 1

$A=10000a+1000b+100c+80+d, \ din{0, 2, 4, 6, 8}, (a+b+c+8+d)vdots3,\ A_1=80000+1000a+100b+10c+d, \ A_1-A = 799200+9000a+900b+90c = 69750, \ 90(100a+10b+c)=10350, \ 100a+10b+c=115, \ a=1, b=1, c=5, \ a+b+c+8+d=1+1+5+8+d=15+d, \ left [ {{d=0,} atop {d=6;}} right. \ left [ {{A=11580,} atop {A=11586.}} right.$