Solution of problem N2809 probability theory

Solution of problem N2809 probability theory

2809. There are 16 students in the class: 6 boys and 10 girls. Before the lessons begin, the class teacher randomly selects two students of the class for duty in the office. What is the probability that there will be two girls on duty in the office?

Additional information:

Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)

Discount for regular customers! If the total of your purchases from the seller Massimo86 exceeds:

• $30 discount 10%
• $20 discount 7%
• $18 discount 6%
• $15 discount 5%
• $12 discount 4%
• $9 discount 3%
• $6 discount 2%
• $3 discount 1%