SOLUTION: To help plan the number of meals to be prepared in a college cafeteria, a survey was conducted, and the following data were obtained.
126 students ate breakfast.
178 students ate
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-> SOLUTION: To help plan the number of meals to be prepared in a college cafeteria, a survey was conducted, and the following data were obtained.
126 students ate breakfast.
178 students ate
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Question 736671: To help plan the number of meals to be prepared in a college cafeteria, a survey was conducted, and the following data were obtained.
126 students ate breakfast.
178 students ate lunch.
270 students ate dinner.
60 students ate breakfast and lunch.
115 students ate breakfast and dinner.
92 students ate lunch and dinner.
53 students ate all three meals.
How many students ate
(a) At least one meal in the cafeteria?
students
(b) Exactly one meal in the cafeteria?
students
(c) Only dinner in the cafeteria?
students
(d) Exactly two meals in the cafeteria?
students Answer by lynnlo(4176) (Show Source):
(