Just a small correction. In Q6, it says D's slot should come immediately before Q. So D will be in 9 slot instead of 9:30. The answer is still option D though
The first thing to note would be that a teacher can only teach in 2 consecutive time periods. When we start working out the table, we see that there are 3 slots at 9:30 (because G has to be before A, in order for P to be able to teach both B and C, and for G and A to be consecutive). This implies that C belongs to the 9:00 am period (B, C and G cannot be together because we would also have to add an Economics student - bringing the total to 4 slots. This is not possible, as we can have a maximum of 3 slots at a time), along with one Economics student. Thus, 9:00 am would have 2 slots (C and an Economics student). 9:30 - 3 slots (B, G and an economics student). 10:00 - Only A (An economics student). 10:30 - F (Anthropology) and one Economics student. Now we can see that there are 2 slots at 9:00, 3 slots at 9:30, and 1 slot at 10:00. Recall that P, T and R have 2 students each. That’s a total of six slots. Also, they can only teach in consecutive time periods. P teaches both B and C - thus, P would be in periods 9:00 and 9:30. T teaches at 9:30, but can’t teach at 10:00 (since only A is there at 10 and A is taught by R). Thus, T’s other slot is at 9 (the Economics student). R needs to teach another person. But we also need to have one more person teach at 9:30 (Of the 3 slots at 9:30, only two are filled by T and P. One is still left). This brings us to two cases: Case 1: If R teaches at 10:30, then R will teach the Economics student. (R teaches A, who is an economics student. It is given that students are only taught by people from their department. If R teaches A, R must belong to the Economics department. Therefore, R cannot teach F, who belongs to the Anthropology department). Thus, F would have to be taught by either Q or S. Case 2: If R teaches at 9:30, both Q and S will have their slots at 10:30. Thus, again, F will either be taught by Q or by S. However, this is not possible. Because the only remaining slot at 9:30 is a sociology slot, which R, an economics professor, cannot teach. Therefore, Case 1 must happen. The rest of sir’s solution follows from here. Hope this helps!
@@sayantanbhattacharyya6074 A line in the paragraph clearly mentions "More than one seminars(upto3) can be scheduled in a slot, provided the guide is free" Can you explain why the 9 AM slot did NOT have 2 sociology lectures when the other guide is free. I understand that an explanation could be that B and G have to be in the same slot. But don't you feel the question is worded wrong?
Just a small correction. In Q6, it says D's slot should come immediately before Q. So D will be in 9 slot instead of 9:30. The answer is still option D though
How can such slots be solved in exam,don't know how people do that ,it's simply unbelievable
Most helpful and brilliant guide
How can we straight away say that anthropology should be guide by either Q or S??
The first thing to note would be that a teacher can only teach in 2 consecutive time periods. When we start working out the table, we see that there are 3 slots at 9:30 (because G has to be before A, in order for P to be able to teach both B and C, and for G and A to be consecutive). This implies that C belongs to the 9:00 am period (B, C and G cannot be together because we would also have to add an Economics student - bringing the total to 4 slots. This is not possible, as we can have a maximum of 3 slots at a time), along with one Economics student.
Thus, 9:00 am would have 2 slots (C and an Economics student).
9:30 - 3 slots (B, G and an economics student).
10:00 - Only A (An economics student).
10:30 - F (Anthropology) and one Economics student.
Now we can see that there are 2 slots at 9:00, 3 slots at 9:30, and 1 slot at 10:00.
Recall that P, T and R have 2 students each. That’s a total of six slots.
Also, they can only teach in consecutive time periods.
P teaches both B and C - thus, P would be in periods 9:00 and 9:30.
T teaches at 9:30, but can’t teach at 10:00 (since only A is there at 10 and A is taught by R). Thus, T’s other slot is at 9 (the Economics student).
R needs to teach another person. But we also need to have one more person teach at 9:30 (Of the 3 slots at 9:30, only two are filled by T and P. One is still left).
This brings us to two cases:
Case 1: If R teaches at 10:30, then R will teach the Economics student. (R teaches A, who is an economics student. It is given that students are only taught by people from their department. If R teaches A, R must belong to the Economics department. Therefore, R cannot teach F, who belongs to the Anthropology department). Thus, F would have to be taught by either Q or S.
Case 2: If R teaches at 9:30, both Q and S will have their slots at 10:30. Thus, again, F will either be taught by Q or by S. However, this is not possible. Because the only remaining slot at 9:30 is a sociology slot, which R, an economics professor, cannot teach.
Therefore, Case 1 must happen.
The rest of sir’s solution follows from here.
Hope this helps!
@@sayantanbhattacharyya6074 woah thnkx buddy
@@sayantanbhattacharyya6074
A line in the paragraph clearly mentions
"More than one seminars(upto3) can be scheduled in a slot, provided the guide is free"
Can you explain why the 9 AM slot did NOT have 2 sociology lectures when the other guide is free.
I understand that an explanation could be that B and G have to be in the same slot. But don't you feel the question is worded wrong?
If its not Online News and Dancing Cats, Out of Normal Daily Chaos, and an Online Ninja Delivery Company. then what is it
Answer?
Bhot tough h Yaar