Question

A survey of 400 students yielded the following information: 259 were seniors, 215 were commuters, and 150 of the seniors were commuters. How many students were seniors but were not commuters?

Answer 1

The number of students that were senior but not commuters is 109

Step-by-step explanation

From the given question, the total number of seniors was 259;

150 of these seniors were commuters.

This means that the seniors contain both the commuters and non commuters.

Now, to find the number of seniors that were not commuters, we subtract the number of seniors that were commuters from the total number of seniors.

i.e:

Number of not commuters = Total number of seniors - number of seniors that were commuter

Number of not commuters = 259 - 150 = 109.

Hence, the number of students that were senior but not commuters is 109