Arrange the words Dyke, Dwindle, Dwell and Dye in correct dictionary (alphabetical) order and choose the correct sequence of their numbers.

Introduction / Context:
This question checks your understanding of dictionary or alphabetical order. You are given four words: Dyke, Dwindle, Dwell, and Dye, with numbers 1 to 4 assigned. You must arrange them as they would appear in an English dictionary and then choose the correct numerical sequence. Such questions are very common in reasoning sections and are simple if you compare letters one by one carefully.

Given Data / Assumptions:

• Words and their numbers: 1 Dyke, 2 Dwindle, 3 Dwell, 4 Dye.
• All words start with the letter D, so comparison starts effectively from the second letter.
• We follow standard dictionary rules: compare letters from left to right, and at the first point of difference, the word with the smaller letter comes first.

Concept / Approach:
To arrange words in dictionary order, we compare them lexicographically, that is, by their letters from left to right. When the first letters are the same, we move to the second letters, and so on. If one word is a prefix of another, the shorter word comes first. Here, all words begin with D, so we compare from the second letter onward, then the third, and so on whenever letters match.

Step-by-Step Solution:
Step 1: Write the words clearly: Dyke, Dwindle, Dwell, Dye. Step 2: Observe the first letter of each word. All start with D, so the first letter does not help ordering. Step 3: Compare the second letters: y in Dyke and Dye, w in Dwindle and Dwell. Because w comes before y in the alphabet, all words starting with Dw come before any starting with Dy. Step 4: Focus on the Dw words: Dwindle and Dwell. Compare their third letters: Dwindle has i (Dwi...), Dwell has e (Dwe...). Since e comes before i, Dwell comes before Dwindle. Step 5: Now focus on the Dy words: Dyke and Dye. Both have second letter y. Compare their third letters: Dyke has k, Dye has e. Since e comes before k, Dye comes before Dyke. Step 6: Combine both parts. Among all four words, we get the order: Dwell, Dwindle, Dye, Dyke. Step 7: Map this back to the numbers: 3 for Dwell, 2 for Dwindle, 4 for Dye, 1 for Dyke, yielding 3,2,4,1.

Verification / Alternative check:
We can check quickly by imagining an actual dictionary page. All Dw words would be listed before Dy words. Within Dw, words are sorted as Dwe... then Dwi..., confirming Dwell then Dwindle. Within Dy, words are sorted as Dye then Dyke. This matches our final sequence. No other ordering among the options respects both the Dw versus Dy grouping and the internal comparisons that we performed.

Why Other Options Are Wrong:
Any option that starts with 1 (Dyke) or 4 (Dye) places a Dy word before a Dw word, which contradicts dictionary order because w comes before y. Options that list 2 before 3 place Dwindle before Dwell, ignoring that Dwe is alphabetically before Dwi. Hence, options like 1,3,4,2 or 2,1,3,4 are inconsistent with lexicographic comparison.

Common Pitfalls:
Some candidates only look at the second letters y and w and then immediately order words as Dyke, Dye, Dwell, Dwindle without carefully resolving the internal ordering within each group. Others may compare only the first two letters and forget to check the third when needed. Always compare letters step by step until a clear difference appears, and then fix the order based on that position.

Final Answer:
The correct dictionary order is Dwell, Dwindle, Dye, Dyke, corresponding to the sequence 3,2,4,1.