What is the answer to question 3?

Step-by-step explanation:
✧ [tex] \underline{ \underline{ \large{ \tt{S\: O \: L \: U \: T \: I\: O \: N}}}} : [/tex]
✧ [tex] \underline{ \underline{ \large\tt{L \: E \:T \:' S \: \: S \: O \: L \: V\: E}}} : [/tex]
Number of people who do not drink tea = n ( U ) - n ( only T ) + n ( T ∩ C )
⇾ [tex] \large{ \tt{121 - (18 + 25)}}[/tex]
⇾ [tex] \large{ \tt{121 - 43}}[/tex]
⇾ [tex] \boxed{\large{ \tt{ 78}}}[/tex]
[tex] \boxed{ \boxed{ \tt{Our \: Final \: Answer : \underline{ \text{78}}}}}[/tex]
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