
Slovní úlohy na směsi
Authored by Eduard Karapetyan
Mathematics
8th Grade

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5 questions
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1.
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1 min • 1 pt
Ze dvou druhů kávy v cenách 240 Kč a 320 Kč za kilogram se má připravit 10 kg směsi v ceně 300 Kč za kilogram. Kolik kilogramů každého druhu kávy bude třeba smíchat? Format odpovědi: 1, 5
2.
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1 min • 1 pt
Po dvoře běhali králíci a slepice. Dohromady měli 9 hlav a 28 noh. Kolik bylo králíků a kolik bylo slepic? Format odpovědí: 1, 2
3.
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1 min • 1 pt
Ze dvou druhů čaje byla vytvořena směs o hmotnosti 10 kg. Cena čaje A byla 160 Kč/kg a čaje B 170 Kč/kg. Cena směsi je 166 Kč/kg. Kolik kilogramů každého druhu čaje bylo třeba smíchat? Format odpovědí: 1, 2
4.
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1 min • 1 pt
Ve sbírce byli pavouci a brouci. Dohromady měli 32 hlav a 216 noh. Kolik bylo brouků a kolik bylo pavouků? Format odpovědí: 1, 2
5.
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1 min • 1 pt
Směs byla vytvořena z 3 kg žlutých bonbonů po 150 Kč/kg, 4 kg červených bonbonů po120 Kč/kg a 5 kg zelených bonbonů po 90 Kč/kg. Urči cenu 1 kg směsi.
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