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276 ÷ 11.5 + 12 = ? x 3 => 24 + 12 = ? x 3 => ? = 12
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
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