If the simple interest on Rs.4,800 at 15% per annum for ' n ' years is Rs.2,160 , then find the value of ' n '.

Correct option is C

Given:

Principle sum(P) = ₹4800

Rate of interest(R) = 15%

Interest(SI) = ₹2160

Time(T) = ‘n’ years

Formula Used:

​$$SI = \frac{P \times R \times T}{100}$$​​

Solution: 

Substituting the values is the formula:

​$$2160 = \frac{4800 \times 15 \times n}{100}$$ 

​$$n=\frac{2160\times 100}{4800 \times 15}$$​​

n = 3 years