# In a class there are 40 students they drink either tea or coffee. 20 students drink coffee and 35 students drink tea. draw a venn diagram and how many drind both coffee and tea

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by rojamadam

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by rojamadam

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tea + coffee - both = 40

⇒ 35+20 - both = 40

⇒ 55 - both = 40

⇒ both = 15

SO 15 students drink both coffee &tea