Question

buna va rog repede este urgent!!!!!!!!!!
daca 2+4+6+.....+abc in baza zece=abc00 cu baradeasurpa ,atunci abc in baza zece

Answer 1

2+4+6+.....+abc=abc00
2(1+2+3+.....+abc/2)=abc00
2*[(abc:2+1)*abc/2]/2=abc00
(abc/2+1)*abc/2=abc00
abc²/4+abc/2= abc*100          |:abc
abc/4+1/2=100                        |x4
abc+2=400
abc=398