$134 \%$ of $3894 + 38.94$ of $134 = ?$

Ramola's monthly income is three times Ravina's monthly income. Ravina's monthly income is $15\%$ more than Ruchira's monthly income. Ruchira's monthly income is $₹ 32,000$. What is Ramola's annual income?

If $40 \%$ of a number is equal to two-third of another number,what is the ratio of the first number to the second number?

In a History examination,the average for the entire class was $80$ marks. If $10 \%$ of the students scored $95$ marks and $20 \%$ scored $90$ marks,what was the average marks of the remaining students of the class?

$125 \%$ of $320 + x \%$ of $125 = 440$. Find the value of $x$.

In Jamshedpur,only two newspapers,Dainik Jagran and Prabhat Khabar,are published. It is known that $25 \%$ of the city population reads Dainik Jagran and $20 \%$ reads Prabhat Khabar,while $8 \%$ reads both the newspapers. It is also known that $30 \%$ of those who read Dainik Jagran but not Prabhat Khabar look into advertisements,$40 \%$ of those who read Prabhat Khabar but not Dainik Jagran look into advertisements,and $50 \%$ of those who read both the newspapers look into advertisements. What is the percentage of the population who read an advertisement?