In each of the following questions, two numbers are given which follow a certain logical or arithmetic relationship. Identify the same pattern and apply it to find the missing number in the second pair. Choose the correct option from the given alternatives.
40321 : 62543 :: 56120 : ?
Show answer & explanation
Correct answer: B
Explanation
Given:
40321 : 62543 :: 56120 : ?
40321 → 62543
Check digit changes:
4 → 6 (+2)
0 → 2 (+2)
3 → 5 (+2)
2 → 4 (+2)
1 → 3 (+2)
Each digit is increased by 2.
Apply same rule to 56120.
5 → 7
6 → 8
1 → 3
2 → 4
0 → 2
Hence, the correct answer is option 2.