Question
11Â Â Â 6Â Â Â 7Â Â Â 12Â Â Â 26Â Â Â
 ?    205.5 What will come in place of the question mark (?) in the following series?Solution
11 x 0.5 + 0.5 = 6Â 6 x 1 + 1 = 7Â 7 x 1.5 + 1.5 = 12 12 x 2 + 2 = 26 26 x 2.5 + 2.5 = 67.5 Â 67.5 x 3 + 3 = 205.5
What should come in place of (?) question mark in the given number series.
81, 73, 66, 60, 55, ?
14 6 4 4 ? 48
...What should come in place of (?) question mark in the following number series.
5, 11, 23, 47, 95, ?
In each of the following number series, one term is missing. Find the missing term.
1, 4, 9, 16, 25, ?
What will come in place of the question mark (?) in the following series?
4, 11, 32, 95, 284, 851, ?
156, 182, 210, 240, 272, ?
31    32      35      ?      47       56
...What should come in place of (?) question mark in the following number series.
1, 2, 6, 24, 120, ?
What value should come in the place of (?) in the following number series?
71, 72, 76, 103, ?, 244254, ?, 1022, 1150, 1214, 1246
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