Answer:
I am will take 20 years to get 20$
My friend will take 10 years to get 20$
Step-by-step explanation:
[tex]Let \: the \: no. \: of \: years : x \\ \\ for \: me \\ x \times (50 \times 2\%) = 20 \\ x \times 1 = 20 \\ x = 20 years\\ for \: my \: friend \\ x \times (50 \times 0.04) = 20 \\ 2x = 20 \\ x = 10 \: years[/tex]
I hope this is be good for you and I want this money