In a certain code language, 'A + B' means 'A is the mother of B'; '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 daughter of B'. Based on the above, if \(J + K ÷ L - T × R\). then how is J related to L?
Wife
Code key: ‘+’ → mother, ‘–’ → brother, ‘×’ → sister, ‘÷’ → daughter.
The chain is \(J + K ÷ L - T × R\). Decode it from right to left or left to right, keeping each pair together.
- K ÷ L means “K is the daughter of L” ⇒ L is a parent of K.
- J + K means “J is the mother of K”.
Thus J and L are the two parents of the same child K.
- L – T means “L is the brother of T” ⇒ L is male.
Since L is male and a parent of K, L must be K’s father. Consequently, J (the mother) is the wife of L.
Answer → J is L’s wife.
Shortcut tip: When two coded statements give the same child with two different parents, those parents form a couple; then use any gender clue to label husband-wife correctly.
Important Questions from Blood Relations
Rani is the sister of Piyush and the daughter of Kamal. Kamal is the son of Gaurav and the brother of Aryan. Aryan is the father of Rajneesh. How is Aryan related to Piyush?
U $ V means 'U is the sister of V'
U @ V means 'U is the husband of V'
U * V means 'U is the son of V'
U ÷ V means 'U is the mother of V'
If O $ P * B @ F, how is O related to F?
Looking at a photograph, Reema says, “This boy’s father is the father of my daughter”. How is the boy related to Reema’s daughter?
Radha (female) and Gyanesh (male) have three daughters - Manuja, Tarini, and Sushma. Tarini is married to Jai and Sushma is married to Abhay. Akhil is the third son-in-law of Gyanesh. Akhil has two children Piyush and Rani. Jai has two daughters Richa and Neha. Mridul is the only son of Abhay. How is Radha related to Rani?
Introducing a girl, the boy says, "She is the daughter of my uncle's father's son". How is the girl related to the boy.
A. Niece
B. Daughter-in-law
C. Sister
D. Aunt
