Go on dividing by 4 to get the next number. So, 200 is wrong.
Go on multiplying 2 and adding 1 to get the next number. So, 39 is wrong.
The pattern is 1 x 2, 2 x 3, 3 x 4, 4 x 5, 5 x 6, 6 x 7, 7 x 8. So, the next number is 8 x 9 = 72.
Go on multiplying the given numbers by 2, 3, 4, 5, 6. So, the correct next number is 1440.
The difference between consecutive terms are respectively. 5, 7, 9, 11 and 13. So, 34 is a wrong number.
Subtract 1, 3, 5, 7, 9, 11 from successive numbers. So, 34 is wrong.
Go on multiplying with 1, 2, 3, 4, 5, 6 to get the next number. So, 96 is wrong.
Multiply each term by 3 to obtain the next term. Hence, 30 is a wrong number.
The pattern is x2 + 1, where x = 1, 2, 3, 4, 5, 6, 7, 8 etc. But 64 is out of pattern
In each number except 383, the product of first and third digit is the middle one.
Add 12, 22, 32, 42, 52,62 .
So, 91 is wrong.
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