Question

A borrowed a sum of money for 3 years at the rate of 5% simple interest from B. He then lent that money to C for the same time and the same time and the same rate at compound interest. If A gained Rs.122, after paying back to B, then the sum borrowed by A was :
A) 16000
B) 12000
C) 8000
D) 4000

Answer 1

ok, trying.

Answer 2

16000

Answer 3

look find ci over 3 yrs
then si over 3 yrs ........

put it in the eq



ci - si =122


my ci is 9261 p
---------
8000


si = 920p
------------
8000