Question 13 • EF Math 12 1st Nine Weeks
For 50 students, the group needs 10 adults because there is one adult for every five students. The tickets cost $1,500 for students (50 × $30) and $450 for adults (10 × $45), for a total of $1,950. After the PTO’s $1,800 contribution, $150 remains; divided among 50 students, that is $3 each. So the correct choice is $3.
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