The population of a town is $9000$. If the number of females increases by $5 \%$ and the males by $7.5 \%$,what will be the total population after the increase? The number of females currently is $3000$.

Water tax is increased by $20 \%$ but its consumption is decreased by $20 \% .$ Then the increase or decrease in the expenditure of the money is

The population of a town increased from $1,75,000$ to $2,62,500$ in a decade. The average per cent increase of population per year is

If the length and breadth of a rectangular field are increased,the area increases by $50 \%$. If the length is increased by $20 \%$,by what percentage was the breadth increased?

In an entrance examination,Ritu scored $56\%$ marks,Smita scored $92\%$ marks,and Rina scored $634$ marks. The maximum marks of the examination are $875$. What are the average marks scored by all the three girls together?

Raman scored $456$ marks in an examination and Seeta got $54 \%$ marks in the same examination,which is $24$ marks less than Raman. If the minimum passing marks in the examination is $34 \%$,then how many more marks did Raman score than the minimum passing marks?