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?
- 58
- 48
- 42
- 40
Explanation
Let the number of girls = x
and
number of boys = 3x.
Then, 3x + x = 4x = total number of students.
Thus, to find the exact value of x, the total number of students must be divisible by 4.
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