按规律填数:3,4,9,9,15,14,( ),19,( ),( )

问题描述:

按规律填数:3,4,9,9,15,14,( ),19,( ),( )

21.27.24.

21,27,24

1 3 5 ..分别是3 9 15 差6
2 4 6 分别是4 9 14 差5
所以 3,4,9,9,15,14,(21 ),19,(27 ),(24 )