The correct answer is B
2187, 1458, 972, ?, 432, 288
22 39 58 81 ? 141
2, 9, 19, 32, 48, 67, ?
62 123 214 341 ? 727
21 11.5 13 ? 45.5 116.75
18 113 559 2247 6721 13451
24 12 18 ? 157.5 708.75 3,898.125
11 12.1 14.3 17.6 22 ?
32 96 240 480 720 ?
31 48 67 90 ? 150
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