Explanation

The pattern of the series is:

1³ = 1, 2² = 4, 2³ = 8, 3² = 9, 3³ = 27

Following this pattern:

4² = 16 (skipped), 4³ = 64

So, the next number in the series is 64.

Explanation

Explanation

The pattern of the series is:

+3, +7, +11, +15, +19...

So, the next difference should be +23:

57 + 23 = 80

The correct answer is 80.

Explanation

The pattern of the number series appears to be an increase of 5, 4, 9, 13, ... , which suggests an increase of 4, then 9, then 13, and so on.

Therefore, the next increase would be 15, which adds up to 57.

Here's the completed series:

4, 9, 13, 22, 35, 57

Explanation

The pattern of the series is:

+1, +2, +3, +4, +5...

So, the next difference should be +6:

16 + 6 = 22

The correct answer is 22.