Question

Sangeeta invested rs.20,000 at 8 % per annual . if the interest is compounded half yearly , then total interest earned by Sangeeta at the end of the year is

Answer 1

Here. Principal (p)= Rs 20000
Rate of interest =r =8% per annum
Time =1 year
Half yearly interest =r/2
Number of times interest paid =2

Compound interest = p[1+(r/2)/100]^2n

=20000[1+(8/2)/100]^2*1
=20000[1+4/100]^2
=20000[104/100]^2
=20000*104/100*104/100
=2*104*104
=Rs1632

Answer 2

Answer:

8% interest yearly can be taken as 4% compounded interest for 2 half years

Step-by-step explanation:

So Total interest earned=20000[1+(4/100)]^2 - 20000

=21632- 20000= 1632