The number of boys in a class is 2 times the number of girls. Which one of the following numbers cannot represent the total number of children in the class ?  Choose the correct choice:
A) A)47
B) B)44
C) C)42
D) D)40
E) E)38
Explanation:   Let number of girls = x and number of boys = 2x.   Then, 2x + x = 3x = total number of students.   Thus, to find exact value of x, the total number of students must be divisible by 3.   Answer: 42
<result>C</result>
The number of boys in a class is 2 times the number of girls. Which one of the following numbers cannot represent the total number of children in the class ?