Answer:
To calculate the present value of an annuity with payments made at the beginning of each period, you can use the present value of an annuity due formula. The formula is:
\[ PV_{\text{due}} = P \times \left( \frac{1 - (1 + r)^{-n}}{r} \right) \times (1 + r) \]
where:
- \( PV_{\text{due}} \) is the present value with payments at the beginning,
- \( P \) is the periodic payment,
- \( r \) is the interest rate per period, and
- \( n \) is the total number of periods.
In this case, \( P = Rs 12,000 \), \( r = 0.135 \) (13.5% expressed as a decimal), and \( n = 15 \). Substitute these values into the formula:
\[ PV_{\text{due}} = Rs 12,000 \times \left( \frac{1 - (1 + 0.135)^{-15}}{0.135} \right) \times (1 + 0.135) \]
Now, calculate each part of the expression:
\[ PV_{\text{due}} = Rs 12,000 \times \left( \frac{1 - (1.135)^{-15}}{0.135} \right) \times (1.135) \]
\[ PV_{\text{due}} \approx Rs 85,590.79 \]
Therefore, Dr. Farooq should be willing to pay approximately Rs 85,590.79 for this annuity with payments made at the beginning of each year.