How much money will be required to buy 125, Rs. 30 shares at a discount of Rs. 3?

The difference between simple interest and compound interest is Rs.19.20 for 2 years. If the principal is Rs. 3,000, find the rate of interest.

A certain sum money is put at compound interest, compounded half-yearly. If the interests for two successive half-years are Rs. 650 and Rs. 760.50; find the rate of interest.

Rajat purchases a wrist-watch costing Rs. 540. The rate of Sales Tax is 8%. Find the total amount paid by Rajat for the watch.

A man invests a sum of money in Rs.20 shares, paying 15% dividend, quoted at 20% premium. If his annual dividend is Rs. 720, calculate (i) his total investment,  (ii) the rate of interest on his investment.

If the interest is compounded half-yearly, calculate the amount when principal is Rs. 7,400; the rate of interest is 5% per annum and the duration is one year.

A man wants to buy 62 shares available at Rs 132 (par value being Rs 100 ). How much he will have to invest ?

Smith buys a radio - set for Rs 1,696. The rate of sales Tax is 6%. He asks the shopkeeper to reduce the price of the radio - set to such an extent that he does not have to pay anything more than Rs 1,696 including Sales Tax. Calculate the reduction needed in the cost price of the radio - set.

The machinery of a certain factory is valued at Rs. 5,50,000. It depreciates each year at 10% of its value. Find the value of the machinery at the end of 3 years.

Geeta purchased face - cream for Rs 79.10 including Sales Tax. If the printed price of the face - cream is Rs 70 ; find the rate of Sales Tax.