If $A$'s income is $25 \%$ less than that of $B$,then how much per cent is $B$'s income more than that of $A$?

$A$ person spends $25 \%$ of his annual income on house rent,$15 \%$ on education of children,and $45 \%$ on other items. If he saves $₹ 14,400$ annually,then the person's total income is: (in $,000$)

Which is the greatest number?

$A$ clerk received an annual salary of $Rs$ $3,660$ in the year $1975$. This was $20\%$ more than his salary in $1974$. What was his salary in $1974$?

$A, B$ and $C$ start a business by investing $Rs. 70000$ that earns them a profit of $Rs. 42000$ at the end of the year. $A$ invests his share in the profit in a scheme that gives $10\%$ interest compounded annually and $B$ invests his share in a scheme that gives $20\%$ interest compounded annually. $A$ gets $Rs. 2520$ as interest at the end of $2$ years and $B$ gets an interest of $Rs. 4200$ at the end of one year. Find $C$'s investment in the business.

If "basis points" are defined so that $1 \%$ is equal to $100$ basis points,then by how many basis points is $82.5 \%$ greater than $62.5 \%$?