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QUESTION
Q
What should come in place of question mark (?) in the following number series:
15, 18, 16, 19, 17, 20, (?)
Solution
The pattern of the number series is:
15 + 3 = 18
18 − 2 = 16
16 + 3 = 19
19 − 2 = 17
17 + 3 =...
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