Difficulty: Medium
Correct Answer: 1,5,2,3,4
Explanation:
Introduction / Context:
Here you need to arrange five similar looking words that all start with Expl or Expo in dictionary order. The words Exploit, Explosive, Exponent, Exposition and Explore must be carefully compared letter by letter, since they share a long common prefix. This exercise reinforces precise alphabetical reasoning beyond the first one or two characters and is useful both for exams and for real world reference skills.
Given Data / Assumptions:
Concept / Approach:
The method is to first split the words into those beginning with Expl and those beginning with Expo, because l comes before o. Within each group, you then compare subsequent letters to establish local order. Finally, you merge the two groups into a full alphabetical list. Once the textual order is known, convert each word to its numeric label to choose the correct option.
Step-by-Step Solution:
Separate groups: Exploit, Explosive and Explore begin with Expl; Exponent and Exposition begin with Expo.
Within the Expl group, compare Exploit, Explosive and Explore beyond Expl. For Exploit, the next letters are o, i, t; for Explore, they are o, r, e; for Explosive, they are o, s, i, v, e.
At the letter after Explo, Exploit has i, Explore has r and Explosive has s. Since i comes before r and s, Exploit (1) is first among the Expl words.
Between Explore and Explosive, r comes before s at the next differing position, so Explore (5) comes before Explosive (2).
In the Expo group, compare Exponent (3) and Exposition (4). Both start with Expo, then Exponent continues with n while Exposition continues with s, so Exponent (3) precedes Exposition (4). Merging the groups gives the overall order: Exploit (1), Explore (5), Explosive (2), Exponent (3), Exposition (4), that is 1,5,2,3,4.
Verification / Alternative check:
Write out the proposed order: Exploit, Explore, Explosive, Exponent, Exposition. Check pairwise. Exploit versus Explore: at the sixth letter, i comes before r, which is correct. Explore versus Explosive: after Explo, r comes before s, as expected. Explosive versus Exponent: since Expl comes before Expo, any Expl word must come before Expo words, so Explosive correctly precedes Exponent. Finally, Exponent versus Exposition is controlled by n versus s, and n comes first, which matches the proposed ordering. This check confirms that the sequence is consistent.
Why Other Options Are Wrong:
Option A places Exponent too early, before Explore and Explosive, which contradicts the rule that Expl words come before Expo words. Option C wrongly orders Explosive before Explore, even though r in Explore comes before s in Explosive. Option D misplaces Exponent and Exposition among the Expl words. Option E, None of these, is incorrect because option B matches the accurate dictionary order 1,5,2,3,4 obtained through systematic comparison.
Common Pitfalls:
One typical mistake is to overlook the difference between Expl and Expo and to compare letters without first grouping by these clear prefixes. Another error comes from misreading the internal sequences such as ploi, plor and plos, which may look similar at a glance. To avoid these issues, underline the shared prefix and then focus your attention on the earliest letter after that prefix where distinctions appear, proceeding step by step rather than relying on visual impressions.
Final Answer:
The correct dictionary order is Exploit, Explore, Explosive, Exponent, Exposition, corresponding to the code 1,5,2,3,4.
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