Elements of SI are in ascending order and those of S2 are in descendin...
What if we suppose numbers in descending order are 25, 24,23,22..... then first options doesn't satisfy.
Elements of SI are in ascending order and those of S2 are in descendin...
Solution:
Given, Elements of SI are in ascending order and those of S2 are in descending order.
We need to interchange a24 and a25. Let us consider the following cases:
Case 1: a24 < />
If a24 < a25,="" then="" swapping="" them="" will="" not="" affect="" the="" order="" of="" si="" and="" s2.="" therefore,="" both="" si="" and="" s2="" will="" continue="" to="" be="" in="" ascending="" and="" descending="" order="" />
Case 2: a24 > a25
If a24 > a25, then after swapping them, the order of SI and S2 will be affected. The element a24 which was previously greater than a25 will now come before a25, and the element a25 which was previously smaller than a24 will now come after a24. This will break the ascending order of SI.
However, the order of S2 will not be affected as it is already in descending order. Therefore, option (a) is the correct answer.
Hence, the correct answer is "SI continues to be in ascending order".