Indicate the following using `'+' " or " '-'` sign :
(i) A gain of Rs. 600 (ii) A loss of Rs. 800
(iii) `7^(@) C` below the freezing point (iv) Decrease of 9
(v) 2 km above sea level (vi) 3 km below sea level
(vii) A deposit of Rs. 200 (viii) A withdrawal of Rs. 300

Answer

To indicate the following situations using '+' or '-' signs, we can analyze each statement step by step:

(i) A gain of Rs. 600
- A gain indicates a positive increase in value. Therefore, we represent this with a '+' sign.
**Answer: +600**

(ii) A loss of Rs. 800
- A loss indicates a decrease in value. Therefore, we represent this with a '-' sign.
**Answer: -800**

(iii) 7 degrees below the freezing point
- Being below the freezing point indicates a negative temperature. Therefore, we represent this with a '-' sign.
**Answer: -7°C**

(iv) Decrease of 9
- A decrease indicates a reduction in value. Therefore, we represent this with a '-' sign.
**Answer: -9**

(v) 2 km above sea level
- Being above sea level indicates a positive elevation. Therefore, we represent this with a '+' sign.
**Answer: +2 km**

(vi) 3 km below sea level
- Being below sea level indicates a negative elevation. Therefore, we represent this with a '-' sign.
**Answer: -3 km**

(vii) A deposit of Rs. 200
- A deposit indicates an increase in value. Therefore, we represent this with a '+' sign.
**Answer: +200**

(viii) A withdrawal of Rs. 300
- A withdrawal indicates a decrease in value. Therefore, we represent this with a '-' sign.
**Answer: -300**

### Summary of Answers:
1. +600
2. -800
3. -7°C
4. -9
5. +2 km
6. -3 km
7. +200
8. -300