Study the following information carefully and answer the questions given below:
(i) Eight persons A, B, C, D, E, F, G and H work in three different companies X, Y and Z.
(ii) There are two ladies who work in different companies and their specialization is also different.
(iii) Two of them have specialization in Finance, another two have specialization in Human Resources, two have specialization in Marketing, one is engineer and one of them is specialist in Computer.
(iv) D is a specialist in Human Resource working in Company X while her friend G is a Finance specialist and works in Company Z.
(v) H is a Human Resource specialist who works with Marketing specialist B but does not work in Company
(vi) The two persons with same specialization do not work together.
(vii) Marketing specialist F works in Company Y and his friend A who is Finance specialist works in Company X with only one other specialist.
(viii) In no company more than three persons work.
(ix) C is an engineer and his sister works in Company Z.
(x) No lady is an engineer or Computer specialist.
In which two companies do Human Resource specialists work?

Options

A. X and Y
B. Y and Z
C. X and Z
D. Data inadequate

Answer

C

Explanation

According to the given information: From (iv), we get
`D overset ("Specialisation")rarr` Human Resource `overset("Works in")rarr` company X.
`Goverset ("Specialisation")rarr` Finance `overset("Works in")rarr` Company Z.
From (vii), we get
`F overset ("Specialisation")rarr` Marketing `overset("Works in")rarr` Company Y.
From (v) & (vi), we get
`H overset ("Specialisation")rarr` Human Resource `overset("Works in")rarr` Company Z.
`B overset ("Specialisation")rarr` Marketing `overset("Works in")rarr` Company Z.
From (iii) & (ix), we get
`C overset ("Specialisation")rarr` Engineer `overset("Works in")rarr` Company Y.
By elimination, we get
`E overset ("Specialisation")rarr` Computer `overset("Works in")rarr` Company Y.
Also from (iv), we get
`D rarr` Male
From (ix), we get
`C to` Male
From (iv), (v) & (vi), we get
`H to` Male
`B to` Male/Female
`G to` Male/Female
From (x), we get
`E to` Male

BY analysing the above table, it is clear that
D (Human Resource Specialist `overset("Works in")rarr` Company X.
and H (Human Resource specialist) `overset("Works in")rarr` Company Z.