Answer :
Using empirical probability.
On Saturday, a total of 429+382+424=1235 people visited the library. Then, the empirical probability of a person going to the Youth Wing section is
[tex]P(YW)=\frac{429}{1235}=\frac{33}{95}[/tex]Then, if on Sunday the library had 1100 visitors,
[tex]\begin{gathered} P_{\text{sunday}}(YW)=1100(\frac{33}{95})=\frac{7260}{19}=382.105\ldots \\ \Rightarrow P_{\text{sunday}}(YW)\approx382 \end{gathered}[/tex]The answer is 382 people.