Find the number that fits somewhere into the middle of the series. Some of the items involve both numbers and letters
Answer: Option A
Explanation:
In this series, 5 is added to the previous number; the number 70 is inserted as every third number.
Answer: Option D
This series alternates the addition of 4 with the subtraction of 3.
Answer: Option B
This is a simple subtraction series in which a random number, 93, is interpolated as every third number. In the subtraction series, 10 is subtracted from each number to arrive at the next.
This is a multiplication series; each number is 3 times the previous number.
In this simple addition with repetition series, each number in the series repeats itself, and then increases by 12 to arrive at the next number.