If $X = 600$ and $Y = 800$,then $X$ is how much percent less than $Y$?

The price of a certain article is $Rs. 15000$. Due to a slump in the market, its price decreases by $8 \%$. Find the new price of the article.

$4598$ is $95 \%$ of what number?

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

The number that is to be added to $10 \%$ of $320$ to have the sum as $30 \%$ of $230$ is

In an examination,there are three papers and a candidate has to get $35 \%$ of the total to pass. In one paper,he gets $62$ out of $150$ and in the second $35$ out of $150$. How much must he get,out of $180$,in the third paper to just qualify for a pass?