Find the one which does not belong to that group ?a)4422b)2442c)4242d)...
Except 4242, all other numbers are divisible by 11.
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Find the one which does not belong to that group ?a)4422b)2442c)4242d)...
Explanation:
To determine which option does not belong to the group, we need to find a pattern or rule that applies to the other options.
Pattern:
Looking at the options, we can see that each option consists of four digits. Let's label these digits as A, B, C, and D.
In options A, B, D, and E, the digits A and B remain the same in each position, while the digits C and D are swapped.
For example:
- In option A (4422), A=4, B=4, C=2, and D=2.
- In option B (2442), A=2, B=4, C=4, and D=2.
- In option D (2244), A=2, B=2, C=4, and D=4.
- In option E (4224), A=4, B=2, C=2, and D=4.
Exception:
However, in option C (4242), the digits C and D are not swapped. Instead, they remain the same.
This makes option C different from the other options, breaking the pattern observed. Therefore, option C does not belong to the group.
Conclusion:
The option that does not belong to the group is option C (4242).