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20 Oct 2023, 06:48
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Number of dinners needed: 1000
Number of rooms reserved: 750
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
66% (02:09) correct
34%
(02:33)
wrong
based on 919
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Data Insights (DI) Butler 2023-24 [Question #59, Date: Oct-20-2023] [Click here for Details]
Registrants for a conference were asked to choose a room for single or double occupancy and to reserve seating for lunches only or for lunches and dinners. A total of 1,250 people registered for the conference, and 250 of those requested single-occupancy rooms. Two hundred people reserved lunch-only seating, and 50 declined all meal service. Find the number of dinners that will be needed and the total number of rooms reserved.
| Number of dinners needed | Number of rooms reserved | |
| 250 | ||
| 500 | ||
| 750 | ||
| 1000 | ||
| 1250 | ||
| 1500 |
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Official Answer
Number of dinners needed: 1000
Number of rooms reserved: 750
23 Oct 2023, 10:46
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Official Explanation
The conference organizers need 250 single rooms, and the remaining 1,000 people can be housed in 500 double rooms, so a total of 750 rooms will be needed. For meals, 50 of the 1,250 attendees declined all meals, and 200 more chose only lunches, so 1,250 – 50 – 200 = 1,000 people reserved dinner seating.
The conference organizers need 250 single rooms, and the remaining 1,000 people can be housed in 500 double rooms, so a total of 750 rooms will be needed. For meals, 50 of the 1,250 attendees declined all meals, and 200 more chose only lunches, so 1,250 – 50 – 200 = 1,000 people reserved dinner seating.
10 Jun 2024, 11:07
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Feels like this question can be open to interpretation based on language, which is usually not the case on the exam. What if I requested a double occupancy room but stayed alone in it? The question should have said what is the "minimum" number of rooms reserved, to leave no room for interpretation.
