Select the number from among the given options that can replace the question mark (?) in the following series.
19, 19, 38, 114, ?, 2280
Show answer & explanation
Correct answer: C
Explanation
Series: 19, 19, 38, 114, ?, 2280
pattern: multiplication by increasing numbers (1, 2, 3, 4, 5)
19 × 1 = 19
19 × 2 = 38
38 × 3 = 114
114 × 4 = 456
456 × 5 = 2280
Therefore, missing number is 456.
The correct answer is option 3.