A sum of money becomes three times of itself at the rate of 10 percent per annum on simple interest. Which of the
following statement(s) is/are correct?
I. It will become 5 times of itself at the rate of 20 percent per annum on simple interest in the same time period.
II. It will become 7 rimes o f itself at the rate of 30 percent per annum on simple interest in the same time period.