1.

18, 20, 44, 138, 560, 2810, ?1). 168182). 168363). 168544). 16872

Answer»

The given number series is based on the following pattern.

18 × 1 + 2 = 20

20 × 2 + 4 = 44

44 × 3 + 6 = 138

138 × 4 + 8 = 560

560 × 5 + 10 = 2810

? = 2810 × 6 + 12 = 16872


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