Multiple choice general knowledge 20,19,17,__,10,5 12 13 14 15 Reveal answer Fill a bubble to check yourself C Correct answer Explanation The differences between consecutive terms increase by 1 each time: 20-19=1, 19-17=2, 17-14=3, 14-10=4, 10-5=5. This gives us 17-3=14 as the missing number, which fits the complete pattern.