uzupełnij 20 procent liczby to 12 1 procent liczby to 9 200 procent liczby to 120 c 10 procent liczby to 3,6

20% = 12 100% = x x = 100% * 12 / 20% = 5*12=60 1% = 9 100% = x x = 100%*9/1% = 9*100 = 900 200% = 120 100% = x x = 100%*120/200% = 0,5*120=60 10% = 3,6 100% = x  x = 100%*3,6/10% = 10*3,6= 36