Aplicații - permutări, aranjamente, combinări
Quiz
•
Mathematics
•
10th Grade
•
Practice Problem
•
Medium
Alicia Dobrin
Used 82+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Ioana are cartonașe cu cifrele de la 1 la 4. Câte numere de 4 cifre distincte poate forma cu aceste cartonașe?
2
4
24
8
Answer explanation
Numărul modurilor in care pot fi așezate cele 4 cartonase este 4!=4*3*2*1=24.
2.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Fie A={1,2,3,4}. Numărul submulțimilor ordonate cu 2 elemente ale mulțimii A este egal cu:
6
4
12
24
3.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Având la dispoziție 15 elevi, câte echipe cu 5 dintre acești elevi se pot forma?
3003
5!
360360
15!
4.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Numărul tuturor submulțimilor unei mulțimi cu 5 elemente este egal cu 52 submulțimi.
ADEVĂRAT
FALS
Answer explanation
Numărul tuturor submulțimilor unei mulțimi cu ''n'' elemente este egal cu 2n , deci numărul submulțimilor unei mulțimi cu 5 elemente este egal cu 25 , adică 32 de submulțimi.
5.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Într-o clasă sunt 16 fete și 8 băieți. Câte grupe de 2 fete și 3 băieți se pot forma?
23520
6720
176
80640
6.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Câte numere de 3 cifre, divizibile cu 5, se pot forma?
90
180
10
100
7.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
100
99
98
9900
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