Study the following information carefully and answer the questions given below it.
Six lectures-A, B, C, D, E and F - are to be delivered from Monday to Sunday, one lecture every day.
(i) Lecture C cannot be delivered on Friday.
(ii) Lecture A is delivered immediately after lecture D.
(iii) There should be a gap of two days between the lectures B and F.
(iv) There is one holiday except Saturday. Lecture F is delivered on the next day of holiday.
(v) Lecture E is delivered on Wednesday and it is not immediately followed by lecture F.
Which of the following statements is not necessary to determine the order of lectures ?

Options

A. (i)
B. (ii)
C. (v)
D. (i) and (ii)

Answer

A

Explanation

According to the given information:
From (v), we get
Lecture E `overset("Day")rarr` Wednesday
From (iii) & (iv), we get
Holiday `overset("Day")rarr` Thursday
So, Lecture B `overset("Day")rarr`Tuesday
Lecture F `overset("Day")rarr` Friday
From (ii), we get
Lecture A `overset("Day")rarr` Sunday
Lecture D `overset("Day")rarr` Saturday
By elimination, we get
Lecture C `overset("Day")rarr` Monday

By analysing the given information, it is clear that, statement (i) is not necessary to determine the order of lectures.