Answer:
1:45
Explanation:
Trickish a bit. But look at it from this angle.
Two students were given marks that when added together, gives a total of 25. 25 on the other hand, is known to be a quarter of 100.
Again, we consider that there are 2 students involved, so we can say that the hour mark is at 2. This means that we have quarter to 2. And looking up quarter to 2 on the clock gives 1:45.
The answer is therefore 1:45