article_snippet.sent: Organisers of SASMO said the question was set to filter out the most intelligent of participants. 
article_snippet.sent: This year around 28,000 students from countries across the world including Singapore, China and the UK took the test .
article_snippet.sent: This year around 28,000 students from countries across the world including Singapore, Thailand, Vietnam, China and the UK the UK took the test.
article_snippet.sent: Henry Ong, executive director of SASMO, told Mothership.sg: 'Being Q24 out of 25 questions, this is a difficult question meant to sift out the better students.
article_snippet.sent: SASMO contests target the top 40% of the student population and the standards of most questions are just high enough to stretch the better students.'