Which number replace question mark in the series 7, 12, 19, ?, 39. - Number Series - Series Completi

In following number series, two terms have been put within brackets. Choose the appropriate option - Which number replace question mark in the series 7, 12, 19, ?, 39.

A. 29

B. 28

C. 26

D. 24

E. None of the above

Answer: B. 28

Clearly, the given sequence follows the pattern:
+5, +7, +9 ... i.e., 7 + 5 = 12, 12 + 7 = 19, ... .
.'. Missing Number = 19 + 9 = 28.
Hence, the answer is (b).

Posted in: Number Series - Series Completion - Verbal Reasoning