A shopkeeper bought 240 ton rice. He sold 4/5th is at 37.5% profit, then find at what percentage profit or loss he should sell remaining rice, so as to gain 25% on the whole transaction? 

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

Price of sugar rises by 20%. By how much percent should the consumption of sugar be reduced so that the expenditure does not change?

A reduction of 20% in the price of sugar enables a housewife to purchase 6 kg. more for Rs. 240. What is the original price per kg. of sugar?

A is 40 % more than B and B is 60% less than C. If C is 60 % more than D, then which of the following is true?

Difference of two numbers is 1890. If 12.5% of one number is 17.5% of the other number, Find the two numbers.

A retailer gets a discount of 40 % on the printed price of an article. The retailer sells it at the printed price. His gain percent is 

If 50% of (x −y) = 30% of (x + y), then what percent of x is y?