Multiple choice general knowledge math & puzzles Find out wrong number in sequence 105,85,60,30,0,-45,-90 0 85 -45 60 Reveal answer Fill a bubble to check yourself A Correct answer Explanation The sequence subtracts 20, then 25, then 30... 105-20=85; 85-25=60; 60-30=30; 30-35=-5. Therefore, 0 is the wrong number in the sequence as it should be -5.