Choose the odd word/letters/number/number pair from the given alternatives.
- A1919
- B5656
- C6761
- D7760
Solution & Step-by-step Explanation
Let's analyze the format of the options:
1919⟹ Formed by repeating the two-digit number 19 twice (XYXY format).
5656⟹ Formed by repeating the two-digit number 56 twice (XYXY format).
6761⟹ Does not repeat the first two digits.
7760⟹ Does not repeat the first two digits.
Let's check alternative mathematical properties like divisibility or digital sum:
Sum of digits:
1919⟹1+9+1+9=20
5656⟹5+6+5+6=22
6761⟹6+7+6+1=20
7760⟹7+7+6+0=20
Except for 5656, the sum of the digits for all other options (1919, 6761, 7760) is exactly 20. Therefore, 5656 is the odd pair out based on digital sum.
1919⟹ Formed by repeating the two-digit number 19 twice (XYXY format).
5656⟹ Formed by repeating the two-digit number 56 twice (XYXY format).
6761⟹ Does not repeat the first two digits.
7760⟹ Does not repeat the first two digits.
Let's check alternative mathematical properties like divisibility or digital sum:
Sum of digits:
1919⟹1+9+1+9=20
5656⟹5+6+5+6=22
6761⟹6+7+6+1=20
7760⟹7+7+6+0=20
Except for 5656, the sum of the digits for all other options (1919, 6761, 7760) is exactly 20. Therefore, 5656 is the odd pair out based on digital sum.