The present population of a town is $26010$. It increases annually at the rate of $2\%$. What was the population of the town two years ago?

In an examination,$52 \%$ of the candidates failed in English and $42 \%$ failed in Mathematics. If $17 \%$ failed in both the subjects,then the percentage of candidates,who passed in both the subjects,was

The price of a shirt is increased by $15 \%$ and then reduced by $15 \%$. The final price of the shirt

$1$ quintal $25$ $kg$ is what percent of $1$ metric tonne?

Ravi is $12$ years younger than Surya. Ravi's age is $40 \%$ of the sum of his and Surya's age. What will be Surya's age $9$ years hence?

After giving a $25 \%$ discount on the entry ticket,the number of visitors increased by $30 \%$. What will be the impact on the total revenue from entry tickets compared to other days?