Logical Reasoning :: Number Series - Discussion

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Explanation:
Every alternate (od number increases by .5 each time
1st = 0.7, 3rd = 1.2, 5th = 1.7, 7th = 2.2, so 9th would be 2.7
Every alternate (even) number increases by 1:
2nd = 1.2, 4th = 2.2, 6th = 3.2, 8th = 4.2, so 10th would be 5.2
so the number in the series is 2.2 +0.5 = 2.7 so ans is