IPMAT Rohtak 2019 (LR) PYQs

M is father of D. M has only two children. D is the brother of C. C is the daughter of K. T is the granddaughter of K. U is the father of T. How is U related to D?

If A+B means A is the brother of B; A-B means A is the sister of B; and A×B means A is the father of B. Which of the following means that C is the son of M?

Based on the English alphabetical order, three of the following four letter cluster pairs are alike in a certain way and thus form a group. Which is the one that does not belong to that group?