Question

1. in a school, 135 students out of 900 are in the 6th grade. out of every 100 students, how many students are 6th grade students?

Explanation:

Step1: Set up the proportion

Let \( x \) be the number of 6th grade students out of 100. We set up the proportion \(\frac{135}{900}=\frac{x}{100}\).

Step2: Solve for \( x \)

Cross - multiply: \( 900x = 135\times100 \). Then \( 900x=13500 \). Divide both sides by 900: \( x = \frac{13500}{900}=15 \).

Answer:

15