Question

18. At what rate percent will Rs 64000 amount to Rs68921 in 3/2 years, interest compound
semi-annually?​

Answer 1

Answer:

5%

Explanation:

nterest is compounded half yearly ,

Here , Amount ( A ) = Rs. 68921 , P = Rs. 64,000

Time = T half–years , Rate =  

5

% per half year

2

A = P  1 +  

R

T

100

⇒ 68921 = 64000  1 +  

5

T

200

⇒  

68921

=  1 +  

1

T

64000 40

⇒  

68921

=  

41

T

64000 40

⇒  

41

3 =  

41

T

40  40

Equating powers on both sides , we get

⇒  T = 3 half years =  

3

= 1  

1

years

2 2