If the positions of the first and the sixth digits of the group of digits 5904627813 are interchanged, similarly, the positions of the second and the seventh are interchanged, and so on, which of the following will be the fourth from the right end after the rearrangement?

According to given question,
If the positions of the first and the sixth digits of the group of digits 5904627813 are interchanged.
New number after interchange = 2904657813
Then the positions of the second and the seventh are interchanged.
New number after interchange = 2704659813
fourth from the right end after the rearrangement is 9.
In the original group of digits '7' is fourth from the right, which is interchanged with '9'.