Find the corresponding sequence in the following I4M : K8R :: ?

Rule: the middle digit is doubled, and both letters advance forward in the alphabet.

• Apply the rule to the example I4M : K8R:

  • Middle digit: 4 → 8 (doubled).

  • Letters: I → K and M → R (both move forward in the alphabet).

• Check each candidate against that rule:

  • B2D : G5L — middle changes 2 → 5 (not doubled) → reject.

  • N4R : T3W — middle changes 4 → 3 (decreases rather than doubling) → reject.

  • N3P : S6Y — middle changes 3 → 6 (doubled); letters N → S and P → Y both move forward → matches the rule.

  • B6H : C7J — middle changes 6 → 7 (not doubled) → reject.

Conclusion: N3P : S6Y is the correct corresponding sequence because it is the only option where the middle digit is doubled and both letters advance, matching the example transformation.