8x3+1=25 19x3+1=58 13x3+1=40 22x3+1=67 hence (19 56 ) is odd one out
(19 56) does not follow n*3 +1 rule
The odd number is (19,56) ( 8, 25 ) = ( 8, 8*3 +1) ( 19,56) = ( 19, 19 *3 -1) (13, 40) = (13, 13*3 +1) (22, 67) = (22, 22*3 +1)
Find the number that comes next in the following series:
3, 7, 12, 14, 16, 19, 21, 25, 30, 41, 45, 52, 54, 56, 59, 61, 65, 70, ?
Find the missing number. 13, 11, 31 19, 9, 17 23, ?, 25