Question

padma invested rs 30000 in a finance company and recieved 39930 after 1.5y. Find the rate of interest per annum compounded semi -annually

Answer 1

Step-by-step explanation:

Padma invented in a finance company=30,000

She received= 39930

after 1.5 year =?

1.5×39930

=

59895

Answer 2

Answer:

20% per annum is the answer

Step-by-step explanation:

p=30000

a= 39930

t= 1 1/2 yrs = 3 hlf yrs

a = p (1+r/100)^t

39930 = 30000 (1+r/100)^3

39930/30000= (1+r/100)^3

11/10= 1+r/100

11/10 -1 = r/100

1/10 = r/100

1/10*100 =r

therefore 10% is rate semianually and 20% is the rate per annum