3, -6, 12, 4, 20, 13, 27, 21, 33
-9, +18, -8, +16, -7, +14, -6, +12
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To find the next number in the series 4, 8, 12, 20, we need to identify the pattern or rule governing the sequence. In this case, the pattern is that each number is the sum of the previous two numbers. 4 + 8 = 12, 8 + 12 = 20, and 12 + 20 = 32. Therefore, the next number in the series is 32.
25 is the next number that appears in that sequence.
The next number in the sequence is 20. You are alternately multiplying the previous number by two and then subtracting two.
16
The Next NumberThe next number is 25 if you use the following pattern: 5, (the number 10), 15 (the first number +10), (the number 10), and the next number is the third number +10 or 25.or you could think of it this way:5, 10 (+5), 15 (+5), -5 (10)The pattern is +5, +5, -5, so the next number would be 15, the next 20, and the next 15.