1. **State the problem:** Rabiatul bought a property for 300000 and after 3 years its value increased to 350000. She also earned 20000 in rental income. We need to find the total return on her investment considering both capital gain and rental income.
2. **Formula for total return:**
$$\text{Total Return} = \text{Capital Gain} + \text{Rental Income}$$
where
$$\text{Capital Gain} = \text{Final Value} - \text{Initial Value}$$
3. **Calculate capital gain:**
$$\text{Capital Gain} = 350000 - 300000 = 50000$$
4. **Add rental income:**
$$\text{Total Return} = 50000 + 20000 = 70000$$
5. **Interpretation:** The total return on Rabiatul's investment over 3 years is 70000, which includes the increase in property value and the rental income earned.
**Final answer:**
$$\boxed{70000}$$
Total Return 335E12
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