Number Series Questions With Answers

The missing number is 6.
The number in the middle of each triple is the same as the digits of either end's number when added together. 3+7=10=8+2 and so on.

6526884. To get from 4 to 12, you use the following formula. 12 = (4 squared)/2 + 4.

Continue on with (X^2)/2 + X.

N for Nine

129.

These are the first 10 prime numbers (2, 3, 5...) prefixed with a 1

61
Reversed digits of squares of number in descending order.

794

The nth term in the series is given by the sum of x^n for x in the range 1 to 3, i.e. 1^n + 2^n + 3^n.

Thus the first term is 1^1 + 2^1 + 3^1 = 1 + 2 + 3 = 6,
the second term is 1^2 + 2^2 + 3^2 = 1 + 4 + 9 = 14,
and so on.

The sixth term is then 1^6 + 2^6 + 3^6 = 1 + 64 + 729 = 794.

N for November!

445

2=(1+1)1
6=(2+1)2
21=(6+1)3
88=(21+1)4
So 445=(88+1)5

3263442

each number is multiplied by the number+1
1x2 = 2
2x3 = 6
6x7 = 42
42x43 = 1806
1806x1807 = 3263442

5

write the numbers in ascending order in words as onE twO threE fouR and so on
Replace the last letter in each word with position of letter in the alphabet (E=5, O=15, E=5, R=18 and so on)

so next number is ninE (=>5 as answer)