Cálculo combinatório

Cálculo combinatório

12th Grade

6 Qs

quiz-placeholder

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Cálculo combinatório

Cálculo combinatório

Assessment

Quiz

Mathematics

12th Grade

Practice Problem

Medium

Created by

Miguel Cruz

Used 22+ times

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6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Considere todos os números pares com cinco algarismos. Quantos destes números têm quatro algarismos impares ?

4 x 4!

 555^5  

5!

5 x 5!

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

De quantas maneiras se podem sentar três raparigas e quatro rapazes num banco de sete lugares, sabendo que em cada um dos extremos fica uma rapariga ?

120

240

720

1440

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Media Image
Media Image
Media Image
Media Image

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

No universo E = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }, considere os conjuntos
A = { 1, 2, 3, 4, 5, 6 }
B = { 2, 4, 6, 8, 10 }
C = { 3, 4, 5 }

Então A \ ( B U C ) =

{ 1 }

{ 1, 6 }

{ 4 }

{ 4, 6 }

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 (n+1)! (n2)!(n1)! n!=\frac{\left(n+1\right)!\ \left(n-2\right)!}{\left(n-1\right)!\ n!}=  

 n+1n1\frac{n+1}{n-1}  

 n2n\frac{n-2}{n}  

 n+1n\frac{n+1}{n}  

 n2n1\frac{n-2}{n-1}  

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A Andreia, a Bárbara, a Catarina, o Duarte e o Eduardo vão sentar-se num banco corrido, com cinco lugares.

De quantas maneiras o podem fazer, ficando uma rapariga no lugar do meio ?

48

72

120

144

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