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If P x Q means 'P' is the sister of 'Q',...

If P x Q means 'P' is the sister of 'Q', R + S means 'R' is the mother of 'S', B + D means 'B' is the wife of 'D', Q - R means 'Q' is the husband of 'R' and D `rArr` S means 'D' is the brother of 'S', which of the following would mean 'R' is the mother-in-law of 'B?
In the above question which of the given statements can be dispensed with to arrive at the answer?

A

D `rArr` R + B

B

B-R + D

C

D + R `rArr` B

D

R `div` D-B

Text Solution

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.R. `rArr` mother of .S.
.D. `rArr` brother of .S.
So, .D. is the son of .R.
R + D `rArr` .R. is the mother of .D.
D - B `rArr` .D. is the husband of .B.
So, .R. is the mother-in-law of .B.
Therefore, option (d) i.e. R + D-B means .R. is the motherin- law of .B..
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LUCENT PUBLICATION-BLOOD RELATIONSHIP-Exercise 3
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  2. If 'A + B' means that A is the mother of B, A div B means that A is th...

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  3. If 'P+Q' means 'P is the father of Q', 'PxQ' meansTis the brother of Q...

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  4. If' A$ B' means 'A is the father of B', 'A * B' means 'A is the mother...

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  5. If ·(A) P + Q means P is the brother of.Q (B) P xx Q means P is the ...

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  6. If ·(A) P + Q means P is the brother of.Q (B) P xx Q means P is the ...

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  7. Study the meaning of the given symbols and answer the questions based ...

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  8. Study the meaning of the given symbols and answer the questions based ...

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  9. (i) 'SxxT' means 'S is the brother of T'. (ii) 'S div T' means 'T i...

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  10. Study the following information carefuJJy and answer the questions giv...

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  11. Following questions are based on the information given below: (i) 'P...

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  12. Following questions are based on the information given below: (i) 'P...

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  13. Study the following information carefully to answer these questions : ...

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  14. Study the following information carefully to answer these questions : ...

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  15. Study the following information carefully to answer these questions : ...

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  16. These questions are based on the following information. (i) 'P xx Q'...

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  17. These questions are based on the following information. (i) 'P xx Q'...

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  18. These questions are based on the following information. (i) 'P xx Q'...

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  19. Read the following information carefully and then answer the questions...

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