Discussion

Explanation:

There are four males: father, mother’s brother and two sons. Similarly, there are four females: mother, father’s sister and two daughters.
Some of the data is directly given and can be tabulated as under:

The following points can be concluded from the table:

  • V is the General Physician (as V comes before 1 p.m., but after the radiologist). 
  • The mother is the Gynaecologist (as the gynaecologist comes before lunch). 
  • R is the younger daughter.

 

The following points can now be added:

  • Neurologist comes third after lunch (as Gynaecologist comes third before lunch) and Urologist comes second after lunch (as Neurologist is immediately after Urologist). Hence, R is the Urologist. 
  • Younger son, P, comes third after lunch (as mother comes third before lunch). Hence, P is the Neurologist. 
  • T (mother’s brother) comes between father and mother, while the father comes before the mother. Hence, Q is the father and T is the Radiologist.

Hence, the only person left i.e. W is the elder son and is the Orthodontist. U is the Paediatrician. The final combinations are as shown below:

Thus, the General Physician is a female and comes at 12 noon.

Hence, option (b).

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