Look at the series of numbers and find out the connection between them and then answer the question below;
What comes next in the sequence:
1, 9, 18, 28…?
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If you look at the series carefully you will figure out the logic between the numbers.
So to get the second number we add 8 to 1;
1 + 8 = 9,
9 + 9 = 18
18 + 10 = 28
So to get the next number in the series;
28 + 11 = 39
Answer = 39.