Tips on Cracking Reasoning Questions on Blood Relations

1. 2 TIPS on cracking Reasoning Questions on Blood Relations

2. Tip #1: Sound knowledge of blood relations Father's father → Grandfather Mother's father → Maternal grandfather Father's mother → Grandmother Mother's mother → Maternal grandmother Father's brother → Uncle Mother's brother → Maternal uncle Father's sister → Aunt Mother's sister → Aunt Children of uncle → Cousin Children of maternal uncle → Cousin Wife of uncle → Aunt Wife of maternal uncle → Maternal aunt Children of aunt → Cousin Husband of aunt → Uncle Question: Pointing to a photograph of a boy Suresh said, "He is the son of the only son of my mother." How is Suresh related to that boy? A. Brother B. Uncle C. Cousin D. Father Solution: Suresh’s mother’s only son is Suresh himself. So, the boy in the photo is Suresh’s son, i.e. Suresh is the boy’s father. The answer is then D. Question: If A + B → A is the mother of B; A - B → A is the brother B; A % B → A is the father of B and A x B → A is the sister of B, which of the following shows that P is the maternal uncle of Q? A. Q - N + M x P B. P + S x N – Q C. P - M + N x Q D. Q - S % P Solution: Analyzing the options, we see, D. Q is the brother of S, S is the father of P → Q is the uncle of P. C. P is the brother of M, M is the mother of N, N is the sister of Q → P is the maternal uncle of Q. Thus, the answer is C.

3. Tip #2: Draw flowchart when suitable Question: P is the mother of K; K is the sister of D; D is J’s father. How is P related to J? A. Mother B. Grandmother C. Aunt D. Data inadequate Solution: P Thus, P is the mother of J’s aunt. m ↓ Or, in other words, P is the grandmother of J. K → D The correct option is B. sis↓ f ( The letters beside/under the arrows indicate: J m: mother, sis: sister, f: father ) Question: Given, M % N means M is the son of N, M @ N means M is the sister of N and M $ N means M is the father of N. Which of the following shows the relation that C is the granddaughter of E? A. C % B $ F $ E B. B $ F $ E % C C. C @ B % F % E D. E % B $ F $ C Solution: Analyzing the options, we see, D. B C. E sonf son ↑ E F F ↓ fson ↑ sis C B → C E is the uncle of C C is the granddaughter of E. Hence, the correct option is C.

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