Ridhaan took a loan of ₹12,000 at the rate of 8% simple interest per annum. What amount will he have to pay after 6 months, if he decides to repay the entire loan amount with interest at that time?

$$interest = \frac{principal\times\ rate\times\ time}{100}$$

$$interest = \frac{12000\times\ 8\times\ 6}{100\times\ 12}$$ [12 months = 1 year, then 1 month = $$\frac{1}{12}$$ year. So 6 month = $$\frac{6}{12}$$ year]

$$interest = 10\times\ 8\times\ 6$$

interest = 480

Amount he will have to pay after 6 months if he decides to repay the entire loan amount with interest at that time = principal+interest

= 12000+480

= 12480