A sum of Rs 28500 is lent out at 6.4% per annum simple interest for 10 years. What will be the amount after 10 years?

Rs 46740

Simple Interest = $\frac{P \times R \times T}{100}$

                       = $\frac{28500 \times 6.4 \times 10}{100}$

                       = 18240

Amount = Principal + SI

             = 28500 + 18240

             = Rs 46740