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P. he and the heads of the three other Q. major central banks had been R. Part of what S. the newspapers had dubbed
18, 54, 162, ?, 1458, 4374
114, 156, ?, 238, 274, 304
60 61 57 66 ? 75 39
...945, 1890, ?, 504, 144, 32
18, 37, 60, ?, 120, 157
129, 224, 355, 528, ?, 1024
What will come in place of the question mark (?) in the following series?
7, 20, 59, 176, 527, 1580, ?
250, 279, 311, 349, 396, ?
3.6 × 1.5 + 8.4 × 2.5 – 9.2 × 3.5 = ? – 9.2 × 4.4
30 162 344 ? 890 1270
...