Find the wrong number in the series.
1, 2, 6, 15, 31, 56, 91
The difference of the two consecutive numbers are 1, 4, 9, 16, 25, 35.
This is clearly , +12, +22, +32, +42, +52,+62
Here 35 is wrong, So our wrong number is 91
A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
730, 1001, 1332, 1729, ?
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76, 38, 19, 9.5, ?
A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
5, 10, 30, 120, ?
11, 121, 1331, 14641, ?
2, 3, 5, 9, 17, ?
14, 19, 29, 44, ?
9, 17, 44, 108, 233, ?
15, 26, 48, 81, 125, ?