What will come in place of '?' in the following number series?
5, 7, 16, 27, 40, ?
5,
5 × 1 + 2 = 7
6 × 2 + 4 = 16
7 × 3 + 6 = 27
8 × 4 + 8 = 40
9 × 5 + 10 = 55 = ?
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