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7 × 2 – 2 = 12 12 × 3 – 3 = 33 33 × 4 – 4 = 128 128 × 5 – 5 = 635
16, 54, 128, ‘?’, 432,686
Direction: Which of the following will replace ‘?’ in the given question?
2, ‘?’, 46, 136, 311, 605, 1086
If 7             16      x    90       171          292
Then, 2x 2 +  1 + x ...
35Â Â Â 70Â Â Â 105Â Â Â 140Â Â Â 175Â Â Â ?
6Â Â Â Â Â Â Â Â Â Â Â Â Â Â 16Â Â Â Â Â Â Â Â Â Â Â 116Â Â Â Â Â Â Â Â Â 566Â Â Â Â Â Â Â Â Â 2272Â Â Â Â Â Â Â 6814
11       a�...
3600 600 120 30 ? 5
...6000Â Â Â Â Â Â 3191Â Â Â Â Â Â 5216Â Â Â Â Â Â 3847Â Â Â Â Â Â 4688Â Â Â Â Â Â 4247
6125       a             b  �...
D irection: Which of the following will replace ‘?’ in the following series.
543,’?’, 564 ,588, 660
...45    67    111    199    ?     727
5184, ?, 432, 144, 36, 12
