Question

3 indira finds that on a typical day, 4 out of every 5 students at her school eat a cafeteria lunch. the rest of the students bring their lunch from home. indira’s school has 495 students. on a typical day, how many students at her school bring their lunch from home? show your work.

Explanation:

Step1: Find the fraction of students bringing lunch from home

The fraction of students eating cafeteria lunch is $\frac{4}{5}$, so the fraction bringing lunch from home is $1 - \frac{4}{5} = \frac{1}{5}$.

Step2: Calculate the number of students bringing lunch from home

Total students = 495. Number of students bringing lunch from home = $495\times\frac{1}{5}$.
$495\div5 = 99$.

Answer:

99