Question

at what rate percent per annum will a sum of rs 4000 yeld rs 1324 as compound interest in three year?

Answer 1

given..

p = principal amount = 4000

ci = compound interest = 1324

n= no.of years

i = rate of interest per annum = ?

we know that ci = p((1+i)^n - p

1324 = 4000((1+i)^3 - 4000

4000 + 1324 =  4000((1+i)^3

5324 =  4000((1+i)^3

5324/4000 =  (1+i)^3

1.331 =  (1+i)^3

(1.1)^3 = (1+i)^3

powers are equal ..equate the bases..

1.1 = 1 + i

1.1 - 1 = I

0.1 = i

10% 0r 0.1 = i is the rate of interest ....

Answer 2

Answer:

Step-by-step explanation: