Question

find the compound intrest on rs. 3125 for 3 years if the rateof intrest for first ,second and third years respectively 4%,5% and 6%

Answer 1

principal=Rs 3125
first rate = 4%
second rate =5%
third rate = 6%
amount of 3 years = p(1+R1/100)(1+R2/100)(1+R3/100)
amount of 3 years =3125×(1+4/100)(1+5/100)(1+6/100)
= 3125×104/100×105/100×106/100
=14469/4= 3617.25
amount of 3 years = Rs 3617.25
then,
C.I= Amount _ Principal
C.I= 3617.25_ 3125
C.I= Rs 492.25