What percent of $12$ is $84$?

If the salary of Manoj is $40 \%$ less than that of Subhash,then by how much percentage is the salary of Subhash more than that of Manoj?

The value of a machine depreciates at the rate of $10 \%$ every year. It was purchased $3$ years ago. If its present value is $₹ 8748$,its purchase price was:

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

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

$A$ sum of $Rs$ $7,930$ is divided into $3$ parts and given on loan at $5 \%$ simple interest to $A, B$ and $C$ for $2, 3$ and $4$ years respectively. If the amounts (principal + interest) of all three are equal after their respective periods of loan,then the amount $A$ received as a loan is: