Question

The difference between the simple interest and the compound interest on a certain sum for
2 years at eh rate of 10% is 50. Find the principal.

Answer 1

Answer:

Step-by-step explanation:

Let the sum be x.

C.I.=[  

x{  

1+(  

100

10

​  

 

​  

)

​  

}  

2

−x

​  

]=  

100

21x

​  

 

S.I.=  

100

x×10×2

​  

 

⇒C.I -S.I =  

100

x

​  

 

⇒  

100

x

​  

=631

⇒x=63100