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Blood Relation Test - Verbal and Reasoning

Q1:

If P + Q means P is the brother of Q; P x Q means P is the father of Q and P - Q means P is the sister of Q, which of the following relations shows that I is the niece of K?

A K + Y + Z - I

B K + Y x I - Z

C Z - I x Y + K

D K x Y + I - Z

ANS:B - K + Y x I - Z

Explanation: K + Y → K is the brother of Y Y x I → Y is the father of I Hence, → K is the uncle of I and I - Z → I is the sister of Z Hence, → I is the niece of K.