Question 81

In 4 years, the SI on a certain sum of money is $$\frac{7}{25}$$ of the principal. What is the annual rate of interest?

SI = $$\frac{PTR}{100}$$

Given SI = 7/25P when t=4

$$\frac{7}{25}P\ =\frac{4PR}{100}$$

=> R=7

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