Some equations are solved on the basis of certain systern. Find out the correct answer for unsolved equ ation on that basis :
कुछ समीकरणों को एक निश्चित प्रणाली के आधार पर हल किया जाता है। उसी आधार पर इस समीकरण का सही उत्तर बताइए। ?
`4 xx 5 xx 8 = 584,7 xx 3 xx 9 = 397,9 xx7 xx 3 = ?`

Options

A. 397
B. 793
C. 973
D. 739

Explanation

To solve the given equations based on the pattern observed in the provided examples, we need to analyze the structure of the equations.

### Step-by-Step Solution:

1. **Identify the Pattern**:
- The first equation is `4 xx 5 xx 8 = 584`.
- The second equation is `7 xx 3 xx 9 = 397`.
- We need to find the result for `9 xx 7 xx 3`.

2. **Rearranging the Terms**:
- In the first equation, the numbers are rearranged as follows:
- `4 xx 5 xx 8` becomes `5 xx 8 xx 4`.
- In the second equation, `7 xx 3 xx 9` becomes `3 xx 9 xx 7`.
- We can see that the middle number is placed first, followed by the last number, and then the first number.

3. **Applying the Same Pattern**:
- Now, let's apply the same rearrangement to the third equation `9 xx 7 xx 3`.
- According to the pattern, we will rearrange it to `7 xx 3 xx 9`.

4. **Final Arrangement**:
- Therefore, the answer for `9 xx 7 xx 3` will be `7 3 9`.

5. **Conclusion**:
- The final answer for the equation `9 xx 7 xx 3` is `739`.