Question

FREE BRAINLIEST ANSWER FOR GOOD BOYS AND GIRLS IN MATHEMATICS(NO PUN INTENDED)

Q. At what rate of interest will a sum of money double itself in 16 1/2 years ( it's a mixed fraction)

Answer 1

hi,
the solution is in the attatchment.

Answer 2

Answer:

6 (2/33)%

Step-by-step explanation:

Let Principal = P.

Then, S.I = P and Time = 33/2 years.

We know that S.I = PTR/100

Rate = (100 * SI)/(P * T)

       = (100 * P * 2)/(P * 33)

       = 200/33

       = 6 (2/33) %.

Therefore, rate of interest = 6 (2/33)% per annum.

Hope it helps!