A sum of money becomes triple itself in 5 years at simple interest. How many years will it become six times at the same rate?
Choose the correct choice from the following answers:
A) 18 1/2 years
B) 12 1/8 years
C) 16 1/2 years
D) 12 1/2 years
E) 12 1/5 years
100 ---- 200 ---- 5   200 ---- 5   100 ---- 2 1/2   ------------------   600 ---- 12 1/2 years   Answer: 12 1/8 years
<result>B</result>
A sum of money becomes triple itself in 5 years at simple interest. How many years will it become six times at the same rate?