Question

Can you guys please do it fast​

Answer 1

Answer:

You haven't said whether simple or compound but compound interest is not given for 12 years usually so I have done simple interest

Let principal be P

Time(t) = 12 yrs

Let rate be r

Amount after 12 years(A) = 2P

Simple Interest(I) = P

B.T.P,

P = Prt/100

or, P = P×r×12/100

or, 1= 12r/100

or, 12r = 100

or, 3r = 25

or, r = 25/3 %

Rate of interest is 25/3 %