Correct option is A
Given:
Number: 5341289
Original | 5 | 3 | 4 | 1 | 2 | 8 | 9 |
Ascending | 1 | 2 | 3 | 4 | 5 | 8 | 9 |
Digits 8 and 9 remain unchanged.
Total unchanged digits = 2.
Total unchanged digits = 2.
Thus, correct option is (a).
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