Question

answer the question​

Answer 1

Answer:

30,000 = P

Step-by-step explanation:

for the time being let p = 100

so r = 20%

Compound interest = PTR/100

= 100 x 20 x 1/100 = 20 so now the amount became  20 + 100 = 120

next year = 120 x 1 x 20 / 100 = 24

so the difference between the interest at the end of 1 st and 2 nd year = 24- 20 = 4

so when the sum was 100 the diff = 4

so when the sum was p the difference was 1200

by unitary method we can find p

SUM   DIFFERENCE

100 .  4

  P  .  1200

1200 x 100 / 4 = P

30,000 = P

this is the correct answer

please mark it as brainliest :)