Answer:
207
Explanation:
To determine how many students bring lunch from home, we need to subtract the number of students who eat in the cafeteria or have a cold lunch from the total number of students.
First, let's find out how many students eat in the cafeteria only. We have 240 students who reported eating the cafeteria's hot lunch, and 82 students who said they eat both hot and cold lunch. To find the number of students who eat only in the cafeteria, we subtract the number of students who eat both from the total number of students who eat hot lunch:
240 - 82 = 158
Next, let's find out how many students have a cold lunch only. We have 135 students who reported eating a cold lunch, but this number also includes the 82 students who eat both hot and cold lunch. To find the number of students who have a cold lunch only, we subtract the number of students who eat both from the total number of students who eat cold lunch:
135 - 82 = 53
Now, let's find out how many students bring lunch from home. To do this, we subtract the number of students who eat in the cafeteria only and the number of students who have a cold lunch only from the total number of students:
418 - 158 - 53 = 207
Therefore, 207 students bring lunch from home.