Question : Directions: Four pairs of numbers have been given, out of which three are alike in some manner, while one is different. Choose out the odd one.
Option 1: 321 : 213 : 123
Option 2: 432 : 324 : 231
Option 3: 798 : 897 : 798
Option 4: 564 : 645 : 456
Correct Answer: 432 : 324 : 231
Solution :
Let's check each option –
First option:
321 : 213 : 123; In all three numbers same digits are repeated.
Second option:
432 : 324 : 231; In all three numbers same digits are not repeated.
Third option:
798 : 897 : 798; In all three numbers same digits are repeated.
Fourth option:
564 : 645 : 456; In all three numbers same digits are repeated.
Thus, the second option doesn't have repeated digits in all numbers.
So, the second option is different from the others. Hence, the second option is correct
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