To find the percent income of a year on 6% debentures of face value ₹100 when available in the market for ₹200, follow these steps:
1. Determine the annual interest income from the debentures.
Since it’s a 6% debenture with a face value of ₹100, the interest income is:
\( \text{Interest Income} = \frac{6}{100} \times 100 = ₹6 \)
2. Calculate the percent income based on the current market price of ₹200.
The formula for percent income is:
\( \text{Percent Income} = \left(\frac{\text{Interest Income}}{\text{Market Value}}\right) \times 100\% \)
Substitute the interest income and market value:
\( \text{Percent Income} = \left(\frac{6}{200}\right) \times 100\% = 3\% \)
Therefore, the percent income of a year on the debentures is 3%.