A training college has to conduct a refresher course for teachers of seven different subjects -- Mechanics, Psychology, Philosophy, Sociology, Economics, Science and Engineering from 22nd July to 29th July.
- Course should start with Psychology.
- 23rd July, being Sunday, should be holiday.
- Science subject should be on the previous day of the Engineering subjects.
- Course should end with Mechanics subject.
- Philosopy should be immediately after the holiday.
- There should be a gap of one day between Economics and Engineering.
Which subject precedes Mechanics ?
Option:
A. Economics
B. Engineering
C. Philosophy
D. Psychology
E. None of these
Answer: E . None of these
Tweet
Justification:
The course starts with Psychology. So, Psychology will be on the 22nd, 23rd being a Sunday will be a holiday. Science will be before Engineering and Economics, Science and Engineering. Mechanics will be the last i.e., on 29th. So, Sociology will fill the gap on the 28th.
Thus, we have :
| 22nd | 23rd | 24th | 25th | 26th | 27th | 28th | 29th |
| Psychology | Sunday | Philosophy | Economics | Science | Engineering | Sociology | Mechanics |
So, Sociology precedes Mechanics.
