question_answer

G.K. Publishers is conducting a seminar of seven Engineering Subject, namely Civil Engg. (CE), Mechanical Engg. (ME), Electrical Engg. (EE), Electronics and Communication (EC), Mining and Machinary (MM), Industrial Engg. (IE) and Petroleum Engg. (PE). From 3rd Jan. to 10th Jan. 4th Jan. is holiday. The seminar should end with ME. IE should be previous day of PE. EE should be immediately after holiday. There should be a gap of exactly one day between MM and PE. There should be a gap of exactly two days between CE and MM, with CE occuring before MM.

Which subject will be on 6th Jan?

A)  CE                         

B)         MM  

C)  \[\text{IE}\]                                     

D)  EE

Correct Answer: B

Solution :

MM will be on 6th Jan. The given information can be summarized as follows: (i)            (ii)           IE            ....           PE (iii)          MM  \[\square \]  PE      or            PE  \[\square \]  MM (iv)         CE           \[\square \]  \[\square \]             MM From (ii) + (iii) + (iv) , we get; CE \[\square \] \[\square \]  MM, IE, PE So, CE cannot be on 6th Jan. So, CE is on 3rd Jan. Hence, arrangement can be as follows: