Mathematics
NULL
Medium
Question
What are the chances that no two boys sit together for a photograph if there are 5 girls and 2 boys?
A
1/7
B
2/7
C
3/7
D
5/7
✓ Official correct answer
Community credibility
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A
1/7
No member explanations yet for this option.
B
2/7
No member explanations yet for this option.
C
3/7
No member explanations yet for this option.
D
5/7
No member explanations yet for this option.
Explanation
Seat the 5 girls first (6 gaps for boys). Probability = [5! × P(6,2)] / 7! = 5/7.