Please help me with venn-diagram question! This is a sample question: At a large school, 110 students were absent on Monday, 100 were absent on Tuesday, and 90 were absent on Wednesday. In total there were 170 students who were absent for at least one of the three days. What is the largest number of students who could have been absent for every one of the these three days?

Question

Please help me with venn-diagram question! This is a sample question: At a large school, 110 students were absent on Monday, 100 were absent on Tuesday, and 90 were absent on Wednesday. In total there were 170  students who were absent for at least one of the three days. What is the largest number of students who could have been absent for every one of the these three days?

unklerhaukus · Answer

|dw:1359079350989:dw|

skullpatrol · Answer

Can you put the numbers into the diagram?

skullpatrol · Answer

110 students were absent on Monday
100 were absent on Tuesday 
90 were absent on Wednesday

anonymous · Answer

|dw:1359080115255:dw|
What is the relationship of the number 170?

skullpatrol · Answer

Where on the diagram is this sentence?

" In total there were 170  students who were absent for at least one of the three days."

anonymous · Answer

I am not sure

skullpatrol · Answer

Where on the diagram is "... absent for every one of the these three days?"

anonymous · Answer

The centre will represent for all three days

skullpatrol · Answer

Yes.

anonymous · Answer

But 170 only represents at least one of the three days, meaning that there can be 170 students who are absent for one, two, or three days respectively