Two numbers are respectively $12 \frac{1}{2} \%$ and $25 \%$ more than a third number. The first number as a percentage of the second number is

$6 \frac{1}{4} \%$ of $1600 + 12 \frac{1}{2} \%$ of $800$ equals

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?

From the salary of an officer,$10\%$ is deducted as house rent,$15\%$ of the rest he spends on children's education,and $10\%$ of the balance,he spends on clothes. After this expenditure,he is left with $₹ 1377$. His salary is:

If $10 \%$ of $x$ is $3$ times $15 \%$ of $y,$ then find $x: y.$

Two numbers are respectively $20 \%$ and $10 \%$ more than a third number. How much per cent is the first number more than the second?