Blood Relation

Logic Level 2

If $P + Q$ means $P$ is the brother of $Q$ ; $P \times Q$ means $P$ is the father of $Q$ and $P - Q$ means $P$ is the sister of $Q$ , which of the following relation shows that $I$ is the niece of $K$ ?

Details

The operations $+,-,\times$ are binary relations. I.e. $P+Q\times R$ means that $P$ is the brother of $Q$ , and $Q$ is the father of $R$ .

Z - I x Y + K K + Y x I - Z K + Y + Z - I K + Y x I + Z

2 solutions

Lakshay Singh
Jul 19, 2014

let consider as K as you and I as your niece then,K+Y = Y is your brother (i have no multiply sign in my keyboard so i am writing = multiply) then,Y I= our brother (Y) is the father of I so,I-Z= I is the sister of Z it means that I is the daughter of Y and our niece =I is the niece of k

I found it by trail and error (I was lucky to find answer in the first try.

Rony C B - 6 years, 1 month ago

Sonali Srivastava
Jul 18, 2014

k+y means k is brother of y y*i means y is father of i i-z means i is sister of z thus k is uncle/aunt of i

Blood Relation

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