Question

Calculate the interest on ₹8000 at 10 percent p.a compounded semiannually for 1 *1/2 ₹

Answer 1

GIVEN,

PRINCIPLE(P)= ₹8000

TIME(T)=3/2 years

RATE OF INTREST(R)=10% per annum

SO,

AMOUNT=P [ 1+R/100×2] ^T×2

= 8000[1+10/200]^3/2×2

=8000[210/200]^3

=8000[21/20]^3

=8000×21/20×21/20×21/20

=21×21×21

=₹9261

NOW,COMPOUND INTEREST=AMOUNT-
PRINCIPLE

= 9261-8000

=₹1261