Question

11, 29, 84, 247, 734
which is the incorrect number

Answer 1

Answer:- 11 is the incorrect number

734 -> ( 247 * 3 ) - 7

247 -> ( 84 * 3 ) - 5

84 -> ( 29 * 3 ) - 3

29 -> Should be ( 10 * 3) - 1 .

So order of correct sequence is 10, 29, 84, 247, 734

Answer 2

Solution: the incorrect number among this is 11. In place of 11, the appropriate number would be 10.

The first number of the given series would be 3 followed by 10, then 29, 84, 247 and 734.

The given set follows a sequence in which 3 is multiplied by 3 and 1 is subtracted. Similarly, 10 is multiplied by 3 and 1 is subtracted.