1.

In a group of 50 persons, 14 drink tea but not coffee and 30 drink tea. Find : (i) how many drink tea and coffee both (ii) how many drink coffee but not tea.

Answer»

In a group of 50 persons, 14 drink tea but not coffee and 30 drink tea. Find :

(i) how many drink tea and coffee both

(ii) how many drink coffee but not tea.




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