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

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