Final answer:
Anju will have to pay a total of Rs.16,800 to the bank after 1 year and 6 months, which includes the principal amount of Rs.15,000 and the simple interest of Rs.1,800 calculated at 8% per annum.
Step-by-step explanation:
To calculate the total amount Anju will have to return after borrowing Rs.15,000 at an interest rate of 8% per annum for 1 year and 6 months, we will use the formula for simple interest.
The formula for simple interest is I = PRT, where I is the interest, P is the principal amount, R is the rate of interest per year, and T is the time in years.
First, we convert the time of 1 year and 6 months into years, which is 1.5 years. Now, we can calculate the interest:
I = PRT = 15,000 × (8/100) × 1.5
The interest Anju will have to pay is:
I = 15,000 × 0.08 × 1.5 = Rs.1,800
Now, to find the total amount Anju needs to return to the bank, we add the interest to the principal amount:
Total amount = Principal + Interest = 15,000 + 1,800 = Rs.16,800
Anju will return Rs.16,800 to the bank after 1 year and 6 months.