The answer will depend on where in the sequence the missing number is:
Using only quartic polynomials, the solutions are:
3, 10, 25, 54, 103
10, 11.75, 25, 54, 103
10, 25, 33.8333..., 54, 103
10, 25, 54, 84.25, 103
10, 25, 54, 103, 178.
Other functional forms will generate many more answers.
The missing number is 26. The number after 29 is 58.
17-12n 17-12(10)=-103
c) 17
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It is7
The missing number is 26. The number after 29 is 58.
178 is the answer By using the formula a{n} = n³ + n² + 5n + 3 For e.g. A{2} =2 ³ +2²+5*2+3=25 =8+4+10+3=25 And so on.    = 10, 25, 54, 103, 178
7 6,7,8,9,10
Dodging numbers may be missing numbers in a sequence. For example, the underscore in the following sequence represents such a number: 2, 4, _ , 8, 10.
342
356
17-12n 17-12(10)=-103
10 (between 7 and 13)
16
c) 17
To determine the missing number in the sequence 20, 0.8, we need to identify the pattern. One possible pattern is that each number is being divided by 10. In this case, 0.8 divided by 10 equals 0.08. Therefore, the missing number would be 0.08.
14