
Combinatòria
Authored by Clara Trullenque
Mathematics
10th Grade
Used 5+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
En un torneig d'escacs hi ha 10 jugadors. Quantes partides diferents es jugaran?
55
45
90
50
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En una reunió de negocis coincideixen 26 persones. Si totes es saluden donant-se la ma, quantes encaixades de ma hi haurà?
325
650
26
52
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dels 39 alumnes d'una classe, 16 han triat fer francès, 27 anglès, 9 ambdós i la resta cap dels dos idiomes. Quina és la probabilitat d'escollir francès però no anglès?
0,43
0,21
0,18
0,14
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quants nombres de tres xifres es poden formar amb els dígits 1,2,3,4?
8
12
64
24
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
L'Eli és biòloga. Escollirà aleatòriament un animal del seu laboratori per estudiar-lo. Hi ha 5 salamandres, 3 crancs i 12 peixos al seu laboratori. Considera els esdeveniments:
A= triar una salamandra
B= triar un cranc
C= triar un peix
P(A U B)?
17/20
5/20
3/20
5/12
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En una competició hi ha 7 nedadors. De quantes maneres diferents poden arribar al pòdium?
35
5040
210
7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quantes paraules diferents es poden formar amb les lletres de la paraula "COURE"?
1
120
210
69
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