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To find the next number in the series 12, 5, 11, 21, we can look at the pattern of differences between the numbers. The differences are: -7 (12 to 5), +6 (5 to 11), and +10 (11 to 21). Continuing this pattern, we can assume the next difference will be +6 (to alternate between decreasing and increasing). Therefore, the next number would be 21 + 6 = 27.
What else can I help you with?
Which series comes next in the series 144-121-100-81-64?
144 = 12 x 12 121 = 11 x 11 100 = 10 x 10 81 = 9 x 9 64 = 8 x 8 49 = 7 x 7
What is the next number in the series 12-11-18-14-24-17?
30!
1 4 5 6 7 9 11 what comes next?
12
The next number in the series 18 9 11 14 7 9 and 12 is?
6
What number sequence comes next 2 6 3 8 6 12?
11
What number comes next in the series 18-9-11-14-7-9-12?
The number 7 comes next.
Which number comes next in this series 164 132 116 18 14 12?
11
What number comes next in this series 15-8-14-9-13-10-12?
11
What comes next in this series 10 8 12 10 14?
12
What comes next in this number series 236175969 48 12?
The next number is the sequence 236175969, 48, 12 is 236175861.
What number comes next in the series 6-8-12-18?
26
What comes next in the series 3 6 9?
The series seems to be "add 3," so the next number in the series would be 12 followed by 15.
What number comes next in the series 2 12 30 56 90?
132
What number comes next in the series 1 7 4 6 12?
9
What comes next 9 4 10 5 11 6?
12
Which series comes next in the series 144-121-100-81-64?
144 = 12 x 12 121 = 11 x 11 100 = 10 x 10 81 = 9 x 9 64 = 8 x 8 49 = 7 x 7
What would be the next number in this series 15 12 13 10 11 8?
What would be the next number in this series 15 12 13 10 11 8?
