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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 8

In questions (i) and (ii), there are four groups of letters in each set. Three of these sets are alike in some way while one is different. Find the one which is different - Mathematics

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Question

In there are four groups of letters in each set. Three of these sets are alike in some way while one is different. Find the one which is different

Options

  • C R D T

  • A P B Q

  • E U F V

  • G W H X

MCQ

Solution

C R D T

Explanation;

Hint:

The four groups of letters are

CRDT APBQ EUFV GWHX

The above can be written as

We find that when we take 1st and 3rd letter & 2nd and 4th letter as 2 pairs, the 3 letter is the next letter alphabetically to the 1st letter.

Similarly the 4th letter is alphabetically the next letter of the 2nd letter.

i.e CD, AB, EF, GH & PQ, UV, WX

Only in CRDT, we have T instead of ‘S’

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Cryptology
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Chapter 7: Information Processing - Exercise 7.3 [Page 261]

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Samacheer Kalvi Mathematics [English] Class 8 TN Board
Chapter 7 Information Processing
Exercise 7.3 | Q 7. (i) | Page 261

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