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Big Foot

13

UFOs

29

 

 

Ghosts

30

2

4

9

2

Discussion 1: Sets

START HERE: TWO people believed in all three

11 believed in UFOs and ghosts minus the two people who believe in all three= NINE

6 believed in ghosts and Bigfoot minus the two people who believe in all three= FOUR

4 believed in UFOs and Bigfoot minus the two who believe in all three= TWO
------------------------
NOW SUBTRACT BIG FOOT, UFOS AND GHOST FROM THE ANSWERS ABOVE PER CIRCLE
21 believed in Bigfoot minus
the TWO who believed in all three minus FOUR(B&G) minus TWO(U&B) = 13

42 believed in UFOs minus the TWO people who believed in all three minus TWO (U&B) minus NINE (U&G)= 29

45 believed in ghosts minus the TWO people who believed in all three minus NINE (G&U) minus FOUR (G&B)= 30

------------------------

LASTLY, ADD ALL PRESENTED IN THE CIRCLE

2+2+4+13+29+9+30=89