Question

there are 7 boys and 5 girls in a class. the teacher randomly selects 3 different students to answer questions. the first student is a girl, the second is a boy, and the 3rd student is a girl. find the probability of this occurring.

Answer 1

7/11

Explanation:

• The first female student has 5 choices
• The second has 7 choices

The 3rd has 4 choices

-. (5*7*4)/12C3