Răspuns :
14/20+2/20+4/20=20/20=1
11/20+3/20+6/20=20/20=1
12/20+5/20+3/20=20/20=1
11/20+3/20+6/20=20/20=1
12/20+5/20+3/20=20/20=1
3/ 20 + 15/ 20 + 2/20 = ( 3+ 15+ 2) / 20 = 20/20 = 1 ; 25/20 + 10 /20 + 5/20 = ( 25+ 10+ 5) /20 = 40/20 = 2 ; 50/20+ 15/20 + 15/20 = (50+ 15+ 15) /20 = 80/20 = 4