Question

a man borrowed 800 rupees at 10% per annum simple interest and immediately lent the whole some at 10% per annum compound interest.
(1) find the compound interest for two years.

Answer 1

P=800 rupees
R=10%
T=2 years
SI=PTR/100
SI=800×10×2/100
SI=160

CI=800×[(1+10) whole power 2-1]
CI=800×120
CI=96000