Three of these letter groups follow the same pattern. Which one is the odd one out: AEI, GKO, OSW, JNS?

💡 Solution & Explanation

In AEI, GKO, OSW, each letter is 4 places after the one before it (for example A = 1, E = 5, I = 9). In JNS the steps are 4 and 5, so it is the odd one out.