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In a party of \(60\) people, \(35\) had Vanilla ice cream, \(30\) had Chocolate ice cream. All the people had at least one ice cream. Then how many of them had,
 
(i) Both Vanilla and Chocolate ice cream \(=\)
 
(ii) Only Vanilla ice cream \(=\)
 
(iii) Only Chocolate ice cream \(=\)