Răspuns:
3) 36:1/6=36:6=6 timbre sora
36-6=30 rest
30:1/5=30:5=6 timbre colegei
36-(6+6)+7=36-12+7=31 timbre are acum Simona
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4) 100%-(60%+10%)=100%-70%=30% nuci
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5) ⁴⁾1/1-3/4=4/4-3/4=1/4 un sfert sunt de alte etnii
1/4·124= 124:4=31 locuitori de alte etnii
