Răspuns :
D= I × C + R
R < I
Resturile posibile sunt : 24,23 22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0.
S=0+1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24=24×25:2=600:2=300
R < I
Resturile posibile sunt : 24,23 22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0.
S=0+1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24=24×25:2=600:2=300
restul mai mic decat impartitorul adica decat 25
S=0+1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24=24*25:2=600:2=300
S=0+1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24=24*25:2=600:2=300