If the number of boys in a class are 8 times the number of girls, which value can never be the total number of students?	Select the correct option
A) 42 B) 45 C) 41 D) 40 E) 39
Let the number of girls = x and the number of boys = 8x   Then, total number of students = x + 8x = 9x   i.e., the total number of students must be a multiple of 9   From the given choices, 42 cannot be a multiple of 9.   Hence, 42 cannot be the total number of students.   42nswer is 42.
<result>A</result>
If the number of boys in a class are 8 times the number of girls, which value can never be the total number of students?