Harshna gave her car for service at service station on $27-05-2009$ and was charged as follows:

$3\%$ less on service Tax and cost price is $\mathrm{Rs}.209.58$.

If the total amount was $\mathrm{Rs}. k$ then find $k$.

Given the principal $=₹40,000,$ rate of interest $=8\% p.a.$ compounded annually. If the interest in the period of one year is $₹k$, then find the value of $k$.

Given the principal $=\mathrm{Rs} 40000,$ rate of interest $=8\% p.a.$ compounded annually. If the principal after two years is $₹k$, then find the value of $k$.

Given the principal $=₹40,000,$ rate of interest $=8\% p.a.$ compounded annually. If the interest after $2nd$ year is $₹k$, then find the value of $k$.

Given the principal $=₹40000,$ rate of interest $=8\% p.a.$ compounded annually. If the amount after $2$ years is $₹k$, then find the value of $k$.

In Delhi University, in the year $2009-10,49,000$ seats were available for admission to various courses at graduation level. Out of these $28,200$ seats were for the students of General Category while $7,400$ seats were reserved for $SC$ and $3,700$ seats for $ST.$ Find the percentage of seats available for students of the General category.

In Delhi University, in the year $2009-10,49,000$ seats were available for admission to various courses at graduation level. Out of these $28200$ seats were for the students of General Category while $7400$ seats were reserved for $SC$ and $3700$ seats for $ST.$ Find the percentage of seats available for the students of $SC$ Category and $ST$ Category taken together.