1.1 2 3 6 12 23 44 ___ 164 1 2 3 6 11 20 ___ 68

1.1 2 3 6 12 23 44 __85_ 164
1 2 3 6 11 20 __37_ 68
2.There are 17 balls with three different colors:black,red and
white.the number of white ball is 6 times as many as that of black
ball.then there are__10或3_red balls.
有17个不同颜色的球,黑,红,白,白球的数量是黑球的6倍,有多少红球.