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.

Both l and ll