Question

How many years will it take for $20 to grow to $100 if the simple interest is 4% annually

Answer 1

It takes 41 years for $20 to grow to $99.86 and if you rounded that up, it would be $100 or if you want it to surpass $100 it would take 42 years turning $20 to $103.85

(Edit: I'm wrong go with the guy on top)

Answer 2

100 years

Explanation:

Simple interest means 4% on the 20$ only and forever.

100-20=80 dollars.

4% of 20 is 0.80

80/0.80 = 100

It will take 100 years