Question

Study the following information carefully and answer the questions below.
(i) ${}^{\prime }P\times Q^{\prime }$ means 'P is brother of Q'.
(ii) ${}^{\prime }P-Q^{\prime }$ means 'P is mother of Q'.
(iii) $P+Q^{\prime }$ means 'P is father of Q'.
(iv) ${}^{\prime }P÷Q^{\prime }$ means 'P is sister of Q'.
Which of the following means 'B is grandfather of F' ?

• A. $B+J-F$
• B. $B-J+F$
• C. $B\times T-F$
• D. $B÷T+F$
• E. $Noneofthese$

Answer 1

The correct option is A $B+J-F$

From option (1),

B + J - F
$B+J\to B$ is the father of J
$J-F\to J$ is the mother of E
So, B is the grandfather of F