8, 12, 24, 28, 56, 60, 120
Explanation:
8 + 4 = 12 12 × 2 = 24 24 + 4 = 28 28 × 2 = 56 56 + 4 = 60 60 × 2 = 120
∴ 120 + 4 = 124
Hence, option (c).
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