Six lectures A, B, C, D, E and F are to be organised in a spam of seven days -- from Sunday to Satur

Six lectures A, B, C, D, E and F are to be organised in a spam of seven days -- from Sunday to Saturday, only one lecture on each day in accordance with the following :

A should not be organised on Thursday.

C should be organised immediately after F.

There should be a gap of two days between E and D.

One day there will be no lecture (Friday is not that day), just before that day D will be organised.

B should be organised on Tuesday and should not be followed by D.

Which of the following informations is not required in finding the complete sequence of organisation of lectures ?

A. 1 only

B. 2 only

C. 1 and 2 only

D. 5 only

E. All are required

Answer: E. All are required

B is organised on Tuesday. Now, D is followed by the day with nno lecture. D cannot be organised on Friday because then E will be on Tuesday (there is a gap of two days between D and E). It cannot be organised on Thursday (because then, there will be no lecture Friday). B cannot be followed by D. So, D will be organised on Sunday and E on Wednesday. No lecture will be organised on Monday. A cannot be organised on Thursday. So, A will be organised on Saturday. F and C will be organised on Thursday and Friday respectively.

So the correct order is :

Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
D	x	B	E	F	C	A

So, All the given statements are required.

Posted in: Sequential Order Of Things - Puzzle Test - Verbal Reasoning