Question

•
In a group photograph, 6 teachers are in the
first row and 18 students are in the second
row. There are 12 boys and 6 girls among the
students. If the middle position is reserved
for the principal and if no two girls are
together, find the number of arrangements.​

Answer 1

Total number of arrangements possible are=2×18!×6!=1440×18

Step-by-step explanation:

Given data:

number of teachers = 6

number of students = 18

number of boys and girls = 12 boys and 6 girls

Solution:

• Here, principal is included in 7 teachers.
• The total number of arrangements possible are=2×18!×6!=1440×18!

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Answer 2

Answer:

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