1) How many committees of 3 can be formed from 10 people? a) 150 b) 140 c) 130 d) 120 2) How many 4-digit numbers can be formed from the digits 1, 3, 5, 6, 8, and 9 if no repetition is allowed? a) 630 b) 360 c) 130 d) 310 3) In how many ways can 8 people line up in a fast food lane? a) 40, 320 b) 40, 230 c) 40, 023 d) 40, 203 4) How many lines are determined by 6 points wherein no 3 points are collinear? a) 15 b) 25 c) 35 d) 45 5) A box contains 5 red balls and 7 white balls. How many sets of 3 balls can be chosen such that one is red and the other two are white? a) 100 b) 205 c) 105 d) 200

Let's Solve the Problem....

打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？