In this series we can see that there is a recurring +3 and -2 operation to obtain the subsequent terms ie.,

5 + 3 = 8

8 - 2 = 6

&

6 + 3 = 9

9 - 2 = 7

Therefore the next 2 terms will be

7 + 3 = 10

10 - 2 = 8.

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What should come in place of the question mark in the following number series - 5, 8, 6, 9, 7, ?

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