
Mărimi proporționale. Regula de trei simplă.
Authored by Dida Isaia
Mathematics
6th Grade
Used 72+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dacă (a,b) direct proporționale cu (3, 6), atunci notăm:
a=3k, b=6k
a=6k, b=3k
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dacă (a, b) sunt invers proporționale cu (2, 3), atunci:
a=2/k, b=3/k
a=k/2, b=k/3
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dacă a și b sunt direct proporționale cu numerele 2 și 5 și a+b=14, atunci
a=6, b=8
a=2, b=12
a=4, b=10
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dacă numerele a și b sunt invers proporționale cu numerele 2 și 4 și a+b=6, atunci
a=4, b=2
a=2, b=4
a=1, b=5
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Din 12 litri de lapte se obțin 8 kg de smântână. Câți litri de lapte sunt necesari pentru a obține 12 kg de smântână?
10
18
20
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
5 muncitori sapă un șanț în 12 zile. În câte zile ar săpa același șanț 6 muncitori?
10
12
9
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