Math Problem Statement

Astrid, Bella, Cleo, Dhea, Estelle dan Frida akan berfoto bersama dengan posisi berjajar. Banyaknya cara menyusun posisi jika Estelle dan Frida harus selalu berdampingan adalah … . Question 6Answer

a. 120 cara

b. 24 cara

c. 10 cara

d. 48 cara

e. 240 cara

Solution

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Math Problem Analysis

Mathematical Concepts

Permutations
Factorials
Combinatorics

Formulas

n! = n × (n-1) × (n-2) × ... × 1
Permutations with conditions = (n-1)! × 2!

Theorems

Permutation Theorem

Suitable Grade Level

Grades 10-12