Discussion :: Number Series
- Which number would fill the empty space in the series; 4, 7, 12, 19, _, 39?
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Answer : Option A
Explanation :
In this series, the difference between the consecutive numbers increases by 2;
7 - 4 = 3
12 - 7 = 5
19 - 12 = 7
Therefore, the next number would be 19 + 9 = 28 (option A)
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