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From 31 members at its establishment in 1966, ADB has grown to encompass 69 members—of which 49 are from within Asia and the Pacific and 20 outside.Asian Development Bank (ADB) also maintains 31 field offices around the world to promote social and economic development in Asia.
20 21 30 55 104 ?
If 204 196 223 x 284
Then, what is the average of the numbers of the above series?
...123 125 129 132 ? 145
21, 63, 315, ?, 19845, 218295
16 4 2 1.5 1 1.875
...150 160 140 ? 130 180
...2, 12, 90, 240, ?, 1260
19 20 42 129 ? 2605 .
5 11 32 65 ? 389
...If 4 2 x 1.5 0.5
Then, 1/3 x + 2.5 = ?