$A$ bag contains $10$-paise and $25$-paise coins in the ratio of $17:6$. If the total money in the bag is $Rs. 112$,the number of $10$-paise coins is:

The ratio of the number of boys and girls in a school of $720$ students is $7: 5$. How many more girls should be admitted to make the ratio $1: 1$?

The ratio of the father's age to his son's age is $7:3$. The product of their ages is $756$. The ratio of their ages after $6$ years will be:

The students in three classes are in the ratio $2:3:5$. If $20$ students are increased in each class,the ratio changes to $4:5:7$. The total number of students before the increase was:

The difference between a two-digit number and the number obtained by interchanging the digits is $36$. What is the difference between the sum and the difference of the digits of the number if the ratio between the digits of the number is $1:2$?

$A$ sum of $Rs. 340.68$ is distributed among $L$,$M$,and $N$ such that $L$ gets $Rs. 5.72$ more than $N$ and $M$ gets $Rs. 2.24$ more than $L$. Find the amount $N$ gets (in $Rs.$).