Question

in how many years will rs 900 yield an interst of rs 324at 12% per annum​

Answer 1

s.i.×100/p×r

give 324×100/900×12

32400/10800 =3

Answer 2

Here ,
P = Rs. 900
R = 12% p.a.
S.I. = Rs. 324

Using the formula,

324 = 108 x T

Hence, T = = 3 years