Number Series Completion - Study Mode

[#86] 2, 3, 4, 5, 6, 4, 8, ... choose which pair of numbers comes next?
Correct Answer

(D) 9, 4

Explanation

Solution: This is an alternating addition series with a random number, 4, interpolated as every third number. In the main series, 1 is added, then 2 is added, then 1, then 2, and so on.

[#87] 21, 25, 18, 29, 33, 18, ... choose which pair of numbers comes next?
Correct Answer

(D) 37, 41

Explanation

Solution: This is a simple addition series with a random number, 18, interpolated as every third number. In the series, 4 is added to each number except 18, to arrive at the next number.

[#88] 75, 65, 85, 55, 45, 85, 35, ... choose which pair of numbers comes next?
Correct Answer

(B) 25, 85

Explanation

Solution: This is a simple subtraction series in which a random number, 85, is interpolated as every third number. In the subtraction series, 10 is subtracted from each number to arrive at the next.

[#89] 11, 16, 21, 26, 31, 36, 41, ... choose which pair of numbers comes next?
Correct Answer

(D) 46, 51

Explanation

Solution: In this simple addition series, each number is 5 more than the previous number.

[#90] 3, 8, 13, 18, 23, 28, 33, ... choose which pair of numbers comes next?
Correct Answer

(C) 38, 43

Explanation

Solution: In this simple addition series, each number is 5 greater than the previous number.