2012 · Q4
A sum of money becomes 3 times in 5 years. In how many years will the same sum become 6 times at the same rate of simple interest?
Elementary MathematicsArithmetic
- A15 years
- B12.5 years
- C10 years
- D7.5 years
Explanation
Interest of 2P in 5 years means rate 40% p.a.; interest of 5P then takes 12.5 years.