Correct Answer: 2, 4, 1, 3, 5

Solution : Given:
1. Drum 2. Drubbing 3. Drunken 4. Drudgery 5. Duster

Step 1: Compare the first letter of each word. Since all the words start with the same letter D , then move on to the next letter.
Step 2: The second letter of each word is either r or u . Based on the alphabetical order of these letters, we can arrange them – D r um, D r ubbing, D r unken, D r udgery, D u ster.
Step 3: Compare the fourth letter of (Dru m , Dru b bing, Dru n ken, Dru d gery). Drubbing will come before Drum, Drunken, and Drudgery in the sequence as b comes before m , n , and d . Drudgery will come before Drum and Drunken in the sequence as d comes before m and n . Similarly, Drum will come before Drunken as m comes before n in the alphabetical system.

So, the sequence is Drubbing, Drudgery, Drum, Drunken, Duster, or 2, 4, 1, 3, 5. Hence, the second option is correct.