72 grams is what percent of 3.6 kilograms?

If 20% of (A + B) = 30% of (A − B), then what percentage of B is equal to A?

In a village, 70 percent of the households have a mobile. 20 percent of the households have TV and 15 percent of the families have both TV and mobile. If the total number of families is 116, then how many families have neither mobile nor TV?

If a number x is 10% less than another number y and y is 10% more than 125, then x is equal to-

If a number is increased by 30 % and after that it is decreased by 25 % and again it is increased by 25 % then find average change in percentage? (approx.) 

If A is equal to 20% of B and B is equal to 25% of C; then what percent of C is equal to A?

With the increase in the price of sugar by 45%, a consumer can buy 9 kg less sugar for Rs. 1740. What is the increased price per kg of sugar?

A man earns a profit of 60% when he sells an article at 4/3 of the original selling price. Find the percent profit he makes at original price.