$0.01$ is what percent of $0.1$?

What percent of Rs. $2650$ is Rs. $1987.50$?

The length and breadth of a square are increased by $30 \%$ and $20 \%,$ respectively. The area of the rectangle so formed exceeds the area of the square by:

What percent of $7.2 \,kg$ is $18 \,g$?

The weight of a container alone is $25 \%$ of the container filled with a certain fluid. When some fluid is removed,the weight of the container and remaining fluid is $60 \%$ of the original total weight. What fractional part of the liquid has been removed?

The present population of a town is $26010$. It increases annually at the rate of $2\%$. What was the population of the town two years ago?