Question 18
Select the number that can replace the question mark (?) in the following series.
1537, 1539, 1543, ?, 1557, 1567
Solution
The series follows pattern as,
1537 + 2 = 1539
1539 + 4 = 1543
1543 + 6 = 1549
1549 + 8 = 1557
1567 + 10 = 1577
$$\therefore$$ The correct answer is option D.
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