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Arithmetic Reasoning - Verbal and Reasoning

Q1:

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 ?

A 48

B 44

C 42

D 40

ANS:C - 42

Explanation: 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.