In the series B, D, G, K, the intervals between letters increase by +1. Next letter is ___.
Q1. In the series B, D, G, K, the intervals between letters increase by +1. Next letter is ___.
Answer: P
Explanation: Intervals: +2, +3, +4, +5 (B→D→G→K→P). P is correct because it matches what the question requires. USAT, HAT and MDCAT analytical sections repeat this pattern.