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Question 1:
13 29 15 26 17 23 19
A. 21 23
B. 20 21
Feedback Here, there are two alternating patterns, with every other number following a different pattern. The first pattern begins with 13 and adds 2 to each number to arrive at the next; the alternating pattern begins with 29 and subtracts 3 each time..
C. 20 17
D. 25 27

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