A sum of money placed at com- pound Interest doubles Itself in 5 years. It will amount to eight times of Itself at the same rate of Interest In

A sum of money placed at com- pound Interest doubles Itself in 5 years. It will amount to eight times of Itself at the same rate of Interest In
1). 20 years
2). 10 years
3). 12 years
4). 15 years

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1. On a certain principal if the Simple interest for two years is Rs 3000 and Compound interest for the two years is Rs 3225, what is the rate of Interest?

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