If the first and second digits in the sequence 5 9 8 1 3 2 7 4 3 8 are...
Understanding the Sequence Transformation
To solve the problem, we need to follow the instructions of interchanging the digits in pairs. The original sequence is:
5, 9, 8, 1, 3, 2, 7, 4, 3, 8
Step-by-Step Interchange
We will interchange the digits in pairs as follows:
- First Pair (1st and 2nd digits): 5 and 9
- New sequence: 9, 5, 8, 1, 3, 2, 7, 4, 3, 8
- Second Pair (3rd and 4th digits): 8 and 1
- New sequence: 9, 5, 1, 8, 3, 2, 7, 4, 3, 8
- Third Pair (5th and 6th digits): 3 and 2
- New sequence: 9, 5, 1, 8, 2, 3, 7, 4, 3, 8
- Fourth Pair (7th and 8th digits): 7 and 4
- New sequence: 9, 5, 1, 8, 2, 3, 4, 7, 3, 8
Identifying the Seventh Digit
Now, we need to determine the seventh digit from the left in the new sequence:
- New sequence: 9, 5, 1, 8, 2, 3, 4, 7, 3, 8
Counting from the left:
1. 9
2. 5
3. 1
4. 8
5. 2
6. 3
7. 4
Conclusion
The seventh digit from the left in the transformed sequence is 4. Therefore, the correct answer is option 'D'.