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Ms. Quinones put 25% of the class in group A, and 75% of the class in group B. How many students are in group B ifthere are 13 students in group A? Draw a diagram to help you.

Answer :

We know that

• There are 13 students in group A.

,

• 25% of the class is in group A.

,

• 75% of the class is in group B.

Based on the given information, 13 students represent 25% of the class, which is group A. To find the numbers of students in group B, we can form the following proportion.

[tex]\frac{13}{0.25}=\frac{x}{0.75}[/tex]

Then, we solve for x.

[tex]\begin{gathered} x=\frac{13\cdot0.75}{0.25} \\ x=39 \end{gathered}[/tex]

Hence, there are 39 students in group B.

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