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
In the following question, select the missing number from the given series.
1, 3, 5, 7, ?
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964, ?, 241, 120.5, 60.25
24, 26, 28, ?, 32, 34
9, 11, 14, 16, 19, 21, ?
Choose the correct alternative which will complete the following series:
21, 55, 19, 50, 17, 45, ?
13, 17, 26, 42, 67, ?
Select the correct option will complete the given number series.
13, 10, 7, 4, ___
7, 11, 15, 19, 23, ?
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