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SC If pr ас a separate sheet 1. Which of the following does NOT illustrate combination? a. Enumerating 2 seats of meals out of 5 b. Selecting 4 songs from 8 choices for singing audition c. Listing the first 5 players out of 15 for a volleyball match d. Fixing schedule of visitors for 5 days in Kulaman River 2. Which of the following is the formula to find n objects, taken r at a time? m2! n! d. b. rl(n-1) (n-r)! n! ?! (nl -r!) 81 3. Calculate the value of 2! 6! a. 25 b. 28 c. 56 d. 64 9! 4. Which of the following is an equivalent of ? 7! a. 16 b. 40 c. 72 d. 90 5. How many 5-digit numbers can be formed from digits 2, 3, 4, 5, 6, and 8? a. 20 b. 12 C. 10 d. 6 6. Which of the following situations illustrates combination? a. arranging books in a shelf b. forming plate numbers of vehicles c. forming different numbers from 8 given digits d. drawing names from a box containing 300 names 7. What is the value of 10C8? a.45 b. 90 C. 135 d. 180 8. The expression 50C50 is equal to a. 0 b. 1 9. Find the value of 5! + (6 - 3)!? c. 25 d. 50 a. 120 b. 124 c. 125 10. In how many ways can a selection of 3 men and 2 women can be made from d. 126 a group of 5 men and 5 women? a. 25 b. 50 c. 100 11. How many different combinations of management can there be to fill the d. 200 positions of manager, secretary and advisor of a company knowing that there are 12 eligible candidates? a. 110 b. 120 12. A committee of five composed of two architects and 3 engineers is to be c. 210 d. 220 formed. In how many ways can the committee be formed from a pool of six architects and 8 engineers? a. 280 b. 360 C. 840 13. The executive board of companies is composed of 12 members. In how d. 920 many ways can the president appoint the 11 other members of the board to form a committee with five members? a. 262 b. 362 C. 462 d.510
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