Task 10 :
In a region of mixed farming ,farms keep goats, cattle or sheep. There are 77 farms altogether, 19 farms keep only goats,8 keep only cattle and 13 keep only sheep,13 keep both goats and cattle,28 keep both cattle and sheep and 8 keep both goats and sheep.
a) Draw Venn diagram to show the above information.
b) Calculate n (G ∩ C ∩ S).
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the answer is still not correct, the right answer is (89-77)/2 = 6
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