$0.35 \%$ of a number is equivalent to multiplying it by the number:

If the price of petrol is increased by $20 \%$,by what percentage should the consumption be decreased by the consumer,if the expenditure on petrol remains unchanged (in $\%$)?

If $A$ is equal to $20 \%$ of $B$ and $B$ is equal to $25 \%$ of $C$,then what percent of $C$ is equal to $A$ (in $\%$)?

Aditya's salary is $125\%$ of Ram's salary. Sanjay's salary is $80\%$ of Ram's salary. If the total of all the three salaries is $Rs. 61000$,what is Sanjay's salary?

Ravi is $12$ years younger than Surya. Ravi's age is $40 \%$ of the sum of his and Surya's age. What will be Surya's age $9$ years hence?

The total population of a village is $5000$. The number of males and females increases by $10\%$ and $15\%$ respectively,and consequently,the population of the village becomes $5600$. What was the number of males in the village?