Question

The difference in simple interest and compound interest on a certain
sum of money in 2 years at 10% p.a. isso. Find the sum )
CA 9000
(B) 6000
(C) 5000 (D) 2000​

Answer 1

Answer:

hope it will help you

Step-by-step explanation:

Let the sum be Rs.100

Computation of compound interest:

Prinicpal =Rs.100

R=10% per annum and n=2 years.

Amount=Rs.  

⎣

⎢

⎡

​  

100×(1+  

100

10

​  

)  

2

 

⎦

⎥

⎤

​  

 

               =Rs.  

⎣

⎢

⎡

​  

100×(  

2

11

​  

)  

2

 

⎦

⎥

⎤

​  

=Rs.121

Computation of simple interest:

Prinicpal =Rs.100

R=10% and Time =2 years.

∴S.I.=Rs.(  

100

100×10×2

​  

)=Rs.20

Thus, difference in C.I. and S.I.=Rs.(21−20)=Re.1

Now, if difference between C.I and S.I. is Re.1,    Then Sum =Rs.100

If difference between C.I. and S.I. is Rs.500,    Then Sum =Rs.(100×500)=Rs.50000