Which number replaces question mark in the series 7, 12, 19, ?, 39.
Which number replaces question mark in the series 7, 12, 19, ?, 39.
Explanation
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 28.