Question

70. th of 80 students in a class are boys. What is the number of girls in the class? 1. 42 2. 45 3. 46 4. 48
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Answer 1

Answer:

Let the number of girls be x, then from the question, it is clear that number of boys are 3x,  

Therefore, total no. of students = Number of boys + Number of girls = 3x+x=4x Now, the total number of children in the class must be a multiple of 4  

(1) does not qualify this condition.  

Therefore, 42 does not represent the total number of children in the class.

Step-by-step explanation:

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