Simple interest on a sum of money for 2 years at 4% is ₹450. Find compound interest of the same sum and at the same rate for 2 years.
Given: SI = Rs. 450; R = 4%; T = 2 years
Now,
P = (SI x 100)/(R x T)
= (450 x 100)/(4 x 2)
= ₹5,625
Now, P = ₹5,625, R = 4% and T = 2 years
So, the amount is calculated as
A = 5625(1 + 4/100)2
= 5625(26/25) 2
= 3802500/625
= ₹6084
Hence,
CI = A - P
= 6084 - 5625
= ₹459