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. 40
C. 42
D. 44 

🧠 Explanation:

If boys are three times the number of girls, the total students can’t be 44. Total must be divisible by 4 (3 parts boys + 1 part girls). Options like 48 work, but 44 doesn’t. This teaches students ratio and divisibility in math.