If $^{'} A$ B' $m e a n s t h a t$ A $i s t h e f a t h e r o f$ B $,$ 'A * B' $m e a n s t h a t$ A $i s t h e m o t h e r o f$ B $,$ 'A @ B' $m e a n s t h a t$ A $i s t h e w i f e o f$ B $, t h e n w h i c h o f t h e f o l l o w i n g m e a n s t h a t$ M $i s t h e g r a n d m o t h e r o f$ N$?

M * R

T @ N$

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M * R @ T @ N

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M * T

N @ R$

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M T

N @ R$

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Solution

The correct option is C $M * T$ N @ R$
$M * T$ N@R$
$\to M$ is mother of T who is father of $N$ who is wife of $R$
$\to M$ is grand mother of $N$

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\div

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\times

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If ′A B'meansthatAisthefatherofB,'A * B'meansthatAisthemotherofB,'A @ B'meansthatAisthewifeofB,thenwhichofthefollowingmeansthatMisthegrandmotherofN$?

The correct option is C M∗T N @ R$M∗TN@R$→M is mother of T who is father of N who is wife of R→M is grand mother of N

The correct option is C $M * T$ N @ R$
$M * T$ N@R$
$\to M$ is mother of T who is father of $N$ who is wife of $R$
$\to M$ is grand mother of $N$