超難I Q test的答案

1)
571219 ...........5 + 7 = 12 , 12 + 7 = 19
841216 ...........8 + 4 = 12 , 12 + 4 = 16
791615 ...........7 + 9 = 16 , 16 + 9 = 25 <> 15 is the odd one out
471118 ...........4 + 7 = 11 , 11 + 7 = 18
781523 ...........7 + 8 = 15 , 15 + 8 = 23
471118 ...........4 + 7 = 11 , 11 + 7 = 18

2)
A bcde F ghijklmn O pqrstuvwxyzab C
1.........6...............15.........................29
1 + 6 = 15 - 8
6 + 15 = 29 - 8
15 + 29 = ? - 8
(? = 52)
而 52 = 26 + 26 ,
所以答案為 Z。