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The number of boys in a class is three times the number of girls. Which one of the following numbers cannot represent the total number of children in the class ?

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The number of boys in a class is three times the number of girls. Which one of the following numbers cannot represent the total number of children in the class ? Answer: 42

Let number of girls = x and number of boys = 3x. Then, 3x + x = 4x = total number of students. Thus, to find exact value of x, the total number of students must be divisible by 4.

Question context

This question is part of 💬 Verbal Reasoning within the broader 🧠 Aptitude Mastery subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.