The ratio of the income to the expenditure of a family is $10:7$. If the family's expenses are $Rs. 10500$,then the savings of the family is (in $Rs.$):

The sum of two numbers is $25$ and their difference is $7 \frac{1}{2}$. Find the ratio of the numbers.

$A, B$ and $C$ received an amount of ₹ $8400$ and distributed it among themselves in the ratio of $6: 8: 7$ respectively. If they save in the ratio of $3: 2: 4$ respectively and $B$ saves ₹ $400$,then what is the ratio of the expenditures of $A, B$ and $C$ respectively?

If $2: x :: 5: 7$,then $x$ is equal to

If $6 A = 4 B = 9 C$,what is $A : B : C$?

The salaries of $A, B, C$ 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?