R is a _________ by specialization and is Cardiologist’s __________
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:
The following points can now be added:
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:
R is a Urologist and is the daughter of Q (the Cardiologist).
Hence, option (d)
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