If 5500 copies are published and the transportation cost on them amounts to Rs. 82,500, then what should be the selling price of the book so that the publisher can earn a profit of 25%?

A took a certain sum as loan from bank at a rate of 8 % Simple Interest per annum. A lends the same amount to B at 12 % Simple interest per annum. If at the end of the five years. A made profit of Rs 800 form the deal, how much was the original sum? 

A certain number when divided by 175 leaves a remainder 132. When the same number is divided by 25, the remainder is:

If the income of A is 10% more than that of B and the income of B is 20% less than that of C, then the incomes of A, B and C respectively are in the ratio