Statement 1: Rate of C.I. accrued in 3rd year

= $\dfrac{\text{Amount of 3 years - Amount of 2 years}}{\text{Amount in 2 years}} \times 100\%$

Statement 2: Amount at the end of 3 years = Amount at the end of 2nd year + Interest on it.

1. Both the statements are true.

2. Both the statements are false.

3. Statement 1 is true, and statement 2 is false.

4. Statement 1 is false, and statement 2 is true.

Statement 1: If P is the sum invested for 2 years at 20% rate of interest

= ₹ P x $\dfrac{20}{100} \times \dfrac{20}{100}$

Statement 2: Interest accrued in 2 years = ₹ (P x $\dfrac{120}{100} \times \dfrac{120}{100} - P)$

1. Both the statements are true.

2. Both the statements are false.

3. Statement 1 is true, and statement 2 is false.

4. Statement 1 is false, and statement 2 is true.

The value of a machine depreciated by 10% per year during the first two years and 15% per year during the third year. Express the total depreciation of the machine, as percent, during the three years.

Rachna borrows ₹ 12000 at 10 per cent per annum interest compounded half-yearly. She repays ₹ 4000 at the end of every six months. Calculate the third payment she has to make at the end of 18 months in order to clear the entire loan.