Percentatges
Quiz
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
Cristina campos
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9 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
El preu de la gasolina s’ha apujat el 2%. Si un litre de gasolina costava 1,25 €, quant costa ara?
1,275 €
2,34 cèntims
1,89 €
1,34 €
Answer explanation
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
La població d’un poble després de l’estiu disminueix un 40%. Si al setembre hi ha 3.600 habitants, quants n’hi havia a l’estiu.
5.500 persones
4.000 persones
6.000 persones
2.400 persones
Answer explanation
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
El preu d’unes sabates és de 25 € sense IVA. Quin serà el preu final?
43,5
43,5 €
30,25 €
30,25
Answer explanation
Abans Ara
100 121
25 x
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
El preu d’un rentavaixelles era de 428€. Si a les primeres rebaixes es va fer un descompte del 20%, i a les segones rebaixes un descompte del 25% sobre el preu rebaixat.
546, 56 €
324, 56€
678,56 €
256,80 €
Answer explanation
Primer he de fer el 20% de descompte de 428 €.
Abans Ara
428 x
100 80
x= 342, 4 €
Després he de fer el 25% de descompte sobre el preu de la primera rebaixa.
Abans Ara
342,4 x
100 75
x= 256, 80 €
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
El 85% dels 60 alumnes d’una classe han anat d’excursió. Quants alumnes no hi han anat?
7 alumnes
6 alumnes
4 alumnes
5 alumnes
Answer explanation
El 85% de 60
(85 · 60) / 100
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Un hotel disposa de 400 llits, dels quals 280 estan ocupats.
Quin percentatge de llits lliures té l’hotel?
55%
70%
30%
40%
Answer explanation
% Ocupats: 280 / 400 = 70 %
Lliures: 100-70= 30%
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Un equip de futbol ha guanyar 55% dels partits. Si han guanyat 22 partits, quants n’han jugat en total?
5 partits
40 partits
35 partits
30 partits
Answer explanation
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