if 50% of (x-y) =30% of (x+y), then what percentage of x is y?

A number is first increased by 10% and then it is further increased by 20%. The original number is increased altogether by:

If 20% of (A+B) = 50% of B, then Value of is 

A person could save 20% of his income. A year later, his income increased by 25% but he could save the same amount only as before. By what percentage has his expenditure increased?

Annual salary of Varun is 7.68 lac. In a month if he spends 12000 on his children, 1/13th of rest on food and 8000 in  mutual funds from his monthly salary, then find the monthly saving he is left with.

Anuja owns of a property. If 30% of the property that she owns is worth 1,25,000, then 45% of the value (in) of the property is:

What percent of 3.6kg is 72 gms ?

The difference of two numbers is equal to 20% of the larger of the numbers. If the smaller number is 40, then find the larger number