Find the principal if the interest compounded annually at the rate of 10% for two years is Rs. 210.
Given,
Rate = 10% p.a
Time = 2 years
Compound interest = Rs.210
Let principal = P
So,
Compound interest = 
= 
= 
= 
= 
Hence,
Principal = Rs.1000.
2
Find the principal if the interest compounded annually at the rate of 10% for two years is Rs. 210.
Given,
Rate = 10% p.a
Time = 2 years
Compound interest = Rs.210
Let principal = P
So,
Compound interest =
=
=
=
=
Hence,
Principal = Rs.1000.