
Autom - Traitement de données 1 - %
Authored by O. CINARELLI-SWINNEN
Mathematics
11th Grade
Used 3+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
⛔ 🖩 Calculatrice non autorisée. ⛔
Compléter la phrase : Augmenter de 20 %, c'est multiplier par ...
0,2
1,2
0,8
0,02
1,02
Answer explanation
CM=1+t
=1+20/100
=1+0,2
=1,2
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
⛔ 🖩 Calculatrice non autorisée. ⛔
Diminuer de 15 %, c'est multiplier par ...
Answer explanation
CM=1+t
=1-15/100
=1-0,15
=0,85
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
⛔ 🖩 Calculatrice non autorisée. ⛔
Multiplier par 1,49, c'est ...
augmenter de 1,49 %
diminuer de 1,49 %
augmenter de 49 %
diminuer de 49 %
diminuer de 51 %
Answer explanation
t=CM-1
=1,49-1
=0,49
soit 49 % d'augmentation
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
⛔ 🖩 Calculatrice non autorisée. ⛔
Multiplier par 0,98 c'est ...
diminuer de 2 %
augmenter de 98 %
diminuer de 98 %
augmenter de 2 %
diminuer de 0,02 %
Answer explanation
t=CM-1
=0,98-1
=-0,02
soit 2 % de diminution
5.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
🖩 Calculatrice autorisée.
Un article coûte 125 € HT (hors taxes). Pour obtenir son prix d'achat, c'est-à-dire le prix TTC (toutes taxes comprises), il faut augmenter le prix HT de 20 %. Calculer le prix TTC en un seul calcul.
Answer explanation
125*(1+20/100)
=125*1,2
=150
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