Question
9, 20, 63, ?, 1285,
7716Â What will come in place of (?) in the given number seriesSolution
ATQ, 9 × 2 + 2 = 20 20 × 3 + 3 = 63 63 × 4 + 4 = 256 256 × 5 + 5 = 1285 1285 × 6 + 6 = 7716
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