If A=x% of y and B=y% of x then which of the following is true?

Ram spends 40% of his salary on food, 20% on house rent, 10% on entertainment and 10% on conveyance. If his savings at the end ofa month are Rs.1500, then his salary per month (in Rs. ) is

Gaurav spends 30% of his monthly income on food, 40% of the remaining on conveyance and clothes, and saves 50% of the remaining . If his monthly salary is Rs 18400, how much money does he save every month?

A fruit seller had some apples. He sells 40% apples and still has 420 apples. Originally, he had:

605 pencils were distributed equally among students of a class in such a way that the number of pencils received by each child is 20% of the total number of children. How many pencils did each child receive?

A person earns Rs. 2000 per month over and above his salary as additional charge allowance. However, 30% of this additional income will be deducted as additional income tax at source. If the person would deposit Rs. 1000 per month on a long term saving fetching 12% interest his tax liability on the additional allowance would reduce to 10%. What is the effective interest for this person for money invested in the long term savings scheme?

If the price of a television set is increased by 25 %, then by what percentage should the new price be reduced to bring the price back to the original level?

Ramu and Suresh was paid a total of Rs. 450 per week. If Ramu is paid 130 percent of the sum paid to Suresh then what is the salary of Suresh per week?

A student scores 90%, 60%, 54% marks in a test paper of 100, 150, 200 respectively as maximum marks. What is the total percentage?

In a company 20% of the employers are below 5 years of experience. The number of employees above 5 years of experience is 2/3 of the number of employers of 5 years of experience which is 48. How many number of employees are there in the company?