PSAT Math Grid-Ins Question 90: Answer and Explanation
Question: 90
Most cinemas have multiple movie theaters, each running a variety of movies all day. The following table shows the daily costs associated with keeping each theater open.
| Expense per Theater | Amount |
|---|---|
| Electricity | $150/day |
| Trash Disposal and Cleaning | $80/day |
| Operational Staff | $11/hour |
If each theater requires one operational staff member for 14 hours, how much money does Cinema XV save per day during the winter months by closing six theaters?
Correct Answer: 2304
Explanation:
2304
Difficulty: Medium
Category: Tables and Graphs
Getting to the Answer: Use the information in the table to calculate how much it costs to run each theater—this will tell you how much the cinema saves by not running the theater. Then multiply by 6.
Electricity = $150
Trash Disposal and Cleaning = $80
Operational Staff = 1 at $11/hour × 14 hours = $154
Total = $150 + $80 + $154 = $384 per theater
The total savings is 6 × $384 = $2,304. Grid in 2304.
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