Which of the following numbers will replace the question mark (?) in the given series?
19, 38, 35, ?, 135, 810
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e.140.
Given series: 19, 38, 35, ?, 135, 810
The series follows this pattern:
19 × 2 = 38
38 - 3 = 35
35 × 4 = 140
140 - 5 = 135
135 × 6 = 810
So, the missing next term in the series is 140.