$20000 will become $60000 at 20% P.A. find the time?	Choose the correct choice from the following choices
A) 2 years
B) 5 years
C) 7 years
D) 8 years
E) 10 years

Rationale: "si = simple interest = a - p = 60000 - 20000 = $ 40000 r = 100 si / pt = 100 * 40000 / 20000 * 20 = 10 years answer is e"
Answer: E