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

Mrs. Jain invests $14 \%$ of her monthly salary,i.e.,$Rs. 7014$ in Insurance Policies. Later she invests $21 \%$ of her monthly salary on Family Mediclaim Policies; also she invests another $6.5 \%$ of her salary on Mutual Funds. What is the total annual amount invested by Mrs. Jain?

Depreciation applicable to an equipment is $20 \%$. The value of the equipment $3$ years from now will be less by: (in $\%$)

$A$ number,when $35$ is subtracted from it,reduces to its $80$ percent. What is four-fifths of that number?

The percentage increase in the surface area of a cube when each side is doubled is:

$1$ quintal $25$ $kg$ is what percent of $1$ metric tonne?