Question

aflati numerele de forma 4a2bc5d stiind ca,citit de la dreapta la stanga se obtine acelasi numar

Answer 1

4a3bc5d

=>d=4

4a3bc54

a=5

453bc54

c=3

453b354  =>b={0,1,2,3,4,5,6,7,8,9}

=> S={4530354; 4531354; 4532354;  4533354; 4534354;  4535354;  4536354;

4537354; 4538354; 4539354}

Answer 2

4a2bc5d = 4520254, 4521254, 4523254, 4526254, 4527254, 4528254, 4529254
a = {5}
b = {0;1;3;6;7;8;9}
c = {2}
d = {4}