Q: 108 (CAPF/2017)

In an election which was contested by two candidates, X and Y, 4000 votes were polled. Suppose that every vote was polled in favour of either of the two candidates. Candidate Y got 40% of vote polled and was defeated. What was the margin of defeat ?
question_subject: 
Current Affairs
question_year: 
2017
question_exam: 
CAPF
stats: 
0,120,80,16,120,24,40