Study the following information carefully and answer the given questions:(i) Maths, Physics, Chemistry, Botany, Zoology and Statistics are six subjects on which a series of lectures are to be organised on a day, though their order is not necessarily the same.(ii) The lectures on Zoology and Chemistry are to be organised either in the beginning or at the end.(iii) The lecture on Physics is to be organised immediately before that on Botany. The lecture on Statistics is to be organised immediately after that on Botany.(iv) There will be a small break after the lecture on Physics and each lecture will be of 45 minutes duration.(v) There will be only two lectures before Physics and the lecture on Chemistry is to be organised immediately before that on Mathematics.Which of the above given statements is not necessary to answer the questions?
Options:
A . V
B . IV
C . III
D . II
E . None of these
Answer: Option B
Subject Sl. No.From (ii) Zoology 1/6 Chemistry 1/6From (iii) Physics X Botany X + 1 Statistics X + 2From (v) X = 3 Chemistry Y Mathematics Y + 1Now, it is clear that the lecture of Chemistry is not to be organised at the end. Hence, from(ii), Chemistry - 1 and Zoology -6. Hence the arrangement will be: Chemistry - 1, Mathematics - 2, Physics - 3, (break), Botany - 4, Statistics - 5, Zoology - 6.
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