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How many ways can 5 distinct books be arranged on a shelf if 2 specific books must stand next to each other?
A24
B36
C48
D60
E72
Answer & Solution
Correct answer: C. 48
1. Identify what is being asked: this is a **Permutations And Combinations** question.
2. Apply the standard approach for this question type to evaluate each option.
3. The correct answer is **C. 48** — it satisfies the conditions of the stem.
_Source: GMAC Official 12 Sample Questions (mba.com)_
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