What per cent of $\frac{2}{7}$ is $\frac{1}{35} ?$

Rajiv spends $20 \%$ of his salary on food,$15 \%$ on conveyance,$10 \%$ on education,and $35 \%$ on house rent. If he spends $Rs. 1950$ on education,how much does he spend on conveyance?

$A$ batsman scored $110$ runs which included $3$ boundaries and $8$ sixes. What per cent of his total score did he make by running between the wickets?

The population of a town $2$ years ago was $62500$. Due to migration to big cities,it decreases every year at the rate of $4\%$. The present population of the town is:

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

The population of a town increases by $12 \%$ during the first year and decreases by $10 \%$ during the second year. If the present population is $50400$,what was it $2$ years ago?