12 × 15 + 27 – ? = 28% of 400

A man invested a sum of money in Scheme A, at a rate of 15% per annum for simple interest, at the end of 2 years the amount received by him is invested in scheme B at 20% per annum for compound interest. If the interest received by him from scheme B at the end of 2 years is Rs. 2860, then find the sum invested by man in the beginning?

An article was sold for Rs.4000. Had a discount of 10% was being offered, the profit would have been 20%. The cost price of the article was:

529 mangoes are distributed to Vivek Amit and Ajay in the ratio of $$ {1\over 2},{2\over 3} ,{3\over4}$$ respectively. So tell me how many mangoes Ajay will get?

If x, y, z are three sum of money such that y is the simple interest on x and z is the simple interest on y for the same time and at the same rate of interest, then what is the relation between x, y, z we have – 

The marked price of an article is 10 % higher than cost price. A discount of 10 % is given on marked price. In this kind of sale, the seller bears: 

The difference between compound interest and simple interest on a sum for 2 year at 20% per annum is Rs 200. If the interest is compounded half yearly, then what is the difference (in Rs) between compound and simple interest for 15 year? 

The cost price of a radio is Rs. 600. The 5% of the cost price is charged towards transportation. After adding that, If net profit to be made is 15%, then the selling price of the radio must be