Combination of r Things from n Things When All Are Not Different
In the follow...
Question
In the following question, four numbers/pairs are given out of which three are alike in some manner while one is different. Choose the one which is different from the rest three.
A
CADGE
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B
JHKNL
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C
ECFGI
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D
XVYBZ
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Solution
The correct option is D ECFGI Every group of letters have certain pattern :
The letters at odd position are consecutive letters and the letters at even positions differ by +6.
But in option C, the letters at odd position are not consecutive.