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Marimi direct sau invers proportionale

Authored by Elena Costache

Mathematics

6th Grade

Used 2+ times

Marimi direct sau invers proportionale
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 4 pts

Aflati numerele a si b,stiind ca sunt direct proportionale cu 2 si 9, iar produsul lor este 72.

a=8 si b=9

a=6 si b=12

a=4 si b=18

a=12 si b=60

2.

MULTIPLE CHOICE QUESTION

30 sec • 4 pts

Daca 4 esarfe se platesc 84 lei, cat costa 6 esarfe de acelasi fel ?

102 lei

114 lei

120 lei

126 lei

3.

MULTIPLE CHOICE QUESTION

1 min • 4 pts

Aflati numerele rationale pozitive a, b, c, stiind ca sunt invers proportionale cu 2, 5, 6, si ca a-b=15.

a=25, b=10, c=8,(3)

a=32, b=17, c=12

a=22,5; b=37,5; c=40

a=20, b=5, c=3,(3)

4.

MULTIPLE CHOICE QUESTION

30 sec • 4 pts

O roata face 100 de rotatii in 4 minute, cate rotatii face in 6 minute ?

120

150

180

200

5.

MULTIPLE CHOICE QUESTION

1 min • 6 pts

Numerele x, y si z sunt direct proportionale cu 4, 6, respectiv 8. Daca x+y-z=8, atunci numerele x, y si z sunt egale cu ...

x=10, y=12, z=14

x=16, y=24, z=32

x=15, y=20, z=25

x=14, y=21, z=28

6.

FILL IN THE BLANK QUESTION

1 min • 6 pts

Daca 3 kg de mere costa 5,25 lei, aflati cate kg de mere de aceeasi calitate se pot cumpara cu 14 lei ?

7.

FILL IN THE BLANK QUESTION

1 min • 6 pts

Daca 5 camioane transporta o cantitate de marfa in 45 de ore, aflati in cate ore transporta aceeasi cantitate 3 camioane .

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