Question

how many years a sum will be doubled if invested at 10% compound half yearly
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Answer 1

Answer:

principal amount given is Rs. 10, 000

Interest rate is 8% per year for 12 months.

It is compounded half yearly.

So,After 6 months, interest added =  

100

8

​

×10,000

=Rs.800.

Sum = 10000+800

=Rs. 10,800.

After 12 months, It is compounded with interest

=10,800×  

100

8

​

 

=Rs.8.64

∴ Compound interest =800+864

=Rs.1664

Step-by-step explanation: