Easy Tutorial
For Competitive Exams

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?

27
45
81
42
Explanation:

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.

Share with Friends
Privacy Copyright Contact Us