Find the greatest perfect square number of 5 digits.

0.08% of 120% of 40,000 is equal to___.

By reducing the circumference of a circle by 50 percent, by what percentage will its area decrease?

Two numbers are 30% and 37% lesser than a third number. By how much percent is the second number to be enhanced to make it equal to the first number?

Given that, 10 % of A's income = 15 % of B's income = 20 % of C's income. If sum of their incomes is ₹ 7800, then B's income is : 

A student has to score 33% marks to pass. He gets 117 marks and fails by 81 marks. Find the student’s marks percentage?

A man saves 20% of his  monthly salary. If an account of dearness of things he is to increase his monthly expenses by 20%, he is only able to save Rs. 200 per month. What is his monthly salary?

If price of the table is increased by 25%, then a person can buy 25 table less for Rs 25000. What is the original price (in Rs) of the table?