1.  A bank offers 5% compound interest calculated on halfyearly basis. A customer deposits Rs. 1600 each on 1^{st} January and 1^{st} July of a year. At the end of the year, the amount he would have gained by way of interest is: 


2.  The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 4% per annum is Re. 1. The sum (in Rs.) is: 


3.  There is 60% increase in an amount in 6 years at simple interest. What will be the compound interest of Rs. 12,000 after 3 years at the same rate? 


4.  What is the difference between the compound interests on Rs. 5000 for 1 years at 4% per annum compounded yearly and halfyearly? 


5.  The compound interest on Rs. 30,000 at 7% per annum is Rs. 4347. The period (in years) is: 

