Answer:
150 students were not accepted.
Explanation:
The ratio right now is 2 to 5 you would need to find an equal ratio with 250 as the second number. 5 is a factor of 250 because if you do 5 x 50 you get 250. So you would multiply 2 by 50 as well which is 100. The ratio is 100 to 250 with 100 being the students being accepted and 250 being the total number of people that applied. Though the question is asking for those that did not pass. If 100 people passed then everyone else out of 250 didn't and 250 - 100 is 150.