Marks obtained by Amit in a test was $20\%$ less than the marks obtained by topper of the class. If the maximum marks that can be obtained in the test is $25\%$ more than the marks obtained by topper of the class, then by what percent was the marks obtained by Amit less than the maximum marks?

Current salary of Kriti is 4800. There will be increase of 15% in it in next year, what  will be the increased salary of Kriti after increment?

There are $1500$ students in a school, $15\%$ are Muslims, $7\%$ are Sikhs, $8\%$ are Christians and remaining are Hindus. How many Hindu students are there in the school?

If $15\% of (x + y) = 45\% of (x - y)$, then $y$ is how much percent of $x$?

A small scale soap business has the following expenses: 10% on marketing, 65% on employees salary and 25% on raw materials. If the business pays a total salary of Rs. 65,000 then what is its marketing expense?