Three numbers $A, B$ and $C$ are in the ratio $12: 15: 25$. If the sum of these numbers is $364$,find the ratio between the difference of $B$ and $A$ and the difference of $C$ and $B$.

If the annual income of $A$,$B$,and $C$ is in the ratio $1:3:7$ and the total annual income of $A$ and $C$ is $Rs. 800,000$,then the monthly salary of $B$ (in $Rs.$) is: (in $,000$)

The ratio of the present ages of Sita and Gita is $4:3$. If $4$ years ago,the ratio of their ages was $2:1$,the present age of Sita is (in years):

The salaries of $A, B$ and $C$ are in the ratio $2: 3: 5$. If increments of $15\%, 10\%$ and $20\%$ are allowed respectively in their salaries,then what will be the new ratio of their salaries?

The price of a diamond is directly proportional to the square of its weight. $A$ man accidentally broke the diamond into three pieces in the ratio of $3:5:7$ and thus lost ₹ $42600$. What was the original price (in ₹) of the diamond?

The present ages of $A$ and $B$ are in the ratio $5:6$ respectively. After seven years,this ratio becomes $6:7$. Then the present age of $A$ in years is: