To find the number of students who were seniors or commuters, we need to add the number of seniors and commuters separately and then subtract the number of seniors who were commuters to avoid double counting.
Number of seniors: 262
Number of commuters: 215
Number of seniors who were commuters: 150
Total number of seniors or commuters = Number of seniors + Number of commuters - Number of seniors who were commuters
Total number = 262 + 215 - 150
Total number = 277
Therefore, a total of 277 out of the 400 surveyed students were seniors or commuters.
A survey of 400 students yielded the following information: 262 were seniors, 215 were commuters, and 150 of the seniors were commuters. How many of the 400 surveyed students were seniors or were commuters?
1 answer