# 6 lectures are scheduled in a week starting from Monday and ending on Sunday of the same week.

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6 lectures are scheduled in a week starting from Monday and ending on Sunday of the same week. Computer Science is not on Tuesday or Saturday. Psychology is immediately after Organisational Behaviour. Statistics is not on Friday and there is one day gap between Statistics and Research Methods. One day prior to the schedule of Economics there is no lecture (as that day is the ‘off’ day) and Monday is not the ‘off’ day.

1. Which of the following is the last lecture scheduled?
1) Statistics
2) Research Methods
3) Psychology
4) Cannot be determined
5) None of these

2. IF Wednesday is the ‘off’ day, the code would be 2-4, if Thursday was the ‘off ‘ day, the code would be 3-3. Taking into account the ‘off’ day which of the following code is correct?
1) 2 - 4
2) 3 - 3
3) 4 - 2
4) Cannot be determined
5) None of these

3. Which lecture is scheduled on Friday
1) Economics
2) Psychology
3) Computer Science
4) Cannot be determined
5) None of these

4. How many lectures were scheduled between Economics and Pshychology?
1) One
2) Two
3) Three
4) Cannot be determined
5) None of these

5. Which day is Computer Science scheduled?
1) Monday
2) Wednesday
3) Thursday
4) Cannot be determined
5) None of these

Confirmed subjects are shown in BOLD.

MonTueWedThuFriSatSun
no OFFno CS  no Statno CSno OFF
• Psychology is immediately after Organisational Behaviour
• One day prior to the schedule of Economics there is no lecture
• there is one day gap between Statistics and Research Methods
• Statistics is not on Friday
We also have an important condition
• Psychology is immediately after Organisational Behaviour
So we have three pairs <Off-Eco>, <Stat-X-RM> and <OB-Psy> and these cover the 7 days. So, CS is the X between Stat and RM.

Now, Stat can come on Tue, Wed or Thu based on given condition for CS and Stat.
Off-Eco cannot come on Mon.
So, <Stat-CS-RM> <Off-Eco> takes 5 out of 6 days from Tue-Sun. But we need 2 continuous days for <OB-Psy>. So, it is clear <OB-Psy> must be on Mon-Tue, and <Stat- CS- RM> starts on Wed and <Off-Eco> starts on Sat.

MonTueWedThuFriSatSun
OBPsyStatsCSRMOffEco

1. Economics.
2. None of these (5-1), 5 days before and 1 day after the offday
3. None of these
4. Three
5. Thursday

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