×% of y is equal to y% of ..........

30% of 80% of 36% of an amount is ₹ 216. What is the amount?

The sum of two numbers is 520. If the bigger number is decreased by 4% and the smaller number is increased by 12%, then the obtained numbers are equal, then smaller number is :

If 40% of an amount is 250, what will be 60% of that amount?

A person who spends (200/3) % of his income is able to save Rs.1,200 per month. His monthly expenses (in Rs.) are

A's weight is 25% of B's weight and 40% of C's weight. What percentage of C's weight is B's weight?