Students 12731

The 32 quartet students were divided into two classes during the game. After the first round, four students moved from the first class to the second, so half the number of students in the second class were in the first class during the first round. How were the students divided into courses in the first round?

Correct answer:

a =  24
b =  8

Step-by-step explanation:


a+b = 32
a/2 = (b+4)

a+b = 32
a-2b = 8

Row 2 - Row 1 → Row 2
a+b = 32
-3b = -24


b = -24/-3 = 8
a = 32-b = 32-8 = 24

a = 24
b = 8

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