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Aflati cifrele a,b,c,d stiind ca abcd barat + bcd barat + cd barat + d =2834

Răspuns :

Ellapalm21
abcd+bcd+cd+d=2830
folosesti scrierea in baza 10
1000a+100b+10c+d+100b+10c+d+10c+d+d=2834
1000a+200b+30c+4d=2834
1000a+200b+30c+4d=2000+800+30+4
1000a=2000 (deci a=2)
200b=800 (deci b=800:200=4)
30c=30 (deci c=1)
4d=4 (deci d=1)

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