Răspuns :
1+2+3+4+5+7+8+9+10+11+12+13+14+15+16+17+18+19=190
20+21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+36+37+38+39+40=630
⇒190<630
20+21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+36+37+38+39+40=630
⇒190<630
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19=190\suma
20+21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+36+37+38+39+40= 630\suma
190<630
630 este cel mai mare.
20+21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+36+37+38+39+40= 630\suma
190<630
630 este cel mai mare.