There are 15 students in Marcelo chess club. There are 2 times as many boys as girls . Howm many girls are in the club?
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To determine the number of girls in Marcelo's chess club, we need to consider that the ratio of boys to girls is 2:1.
Let's assume the number of girls in the club is x. According to the given information, the number of boys would be twice that, which is 2x.
Thus, the total number of students in the club is the sum of the number of boys and girls, which is 2x + x = 3x. Since we know that there are 15 students in total, we can set up an equation:
3x = 15
To solve for x (the number of girls), we divide both sides of the equation by 3:
x = 15 / 3
x = 5
Therefore, there are 5 girls in Marcelo's chess club.
g + 2g = 15
3g = 15
g = ?