If A & B means ‘A is the father of B’,

A = B means ‘A is the husband of B’,

A % B means ‘A is the sister of B’,

A # B means ‘A is the mother of B’,

then which of the following expression means ‘T is the paternal grandfather of R’?

Question

Question

This question was previously asked in

BHEL Supervisor Trainee Civil 21 Jan 2024 Official Paper

Answer 1

Let us first decode the given symbols and then draw a family tree.

LR table

Let us check each option

1) E % T & G = R # N, means E is sister of T. T is father of G. G is husband of R. R is mother of N.

qImage67c6acf07ac7f5d43b75c723

2) E % T & G = N # R, means E is sister of T. T is father of G. G is husband of N. N is mother of R.

qImage67c6acf17ac7f5d43b75c724

3) E % T & G = N % R, means E is sister of T. T is father of G. G is husband of N. N is sister of R

qImage67c6acf17ac7f5d43b75c73c

4) T % E & G = N # R, means T is sister of E. E is father of G. G is husband of N. N is mother of R

qImage67c6acf27ac7f5d43b75c73e

Thus, Option 2) expression means ‘T is the paternal grandfather of R’.

Hence, the correct answer is "Option 2".