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?
a.
!
(−)!
b.
!
! !
c.
!
(! −!)
d.
!
!(−)!
3. Calculate the value of
8!
2! 6!
.
a. 25 b. 28 c. 56 d. 64
4. Which of the following is an equivalent of
9!
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 c. forming different numbers from 8 given digits
b. forming plate numbers of vehicles 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 c. 25 d. 50
9. Find the value of 5! + (6 – 3)!?
a. 120 b. 124 c. 125 d. 126
10. In how many ways can a selection of 3 men and 2 women can be made from
a group of 5 men and 5 women?
a. 25 b. 50 c. 100 d. 200
11.How many different combinations of management can there be to fill the
positions of manager, secretary and advisor of a company knowing that there
are 12 eligible candidates?
a. 110 b. 120 c. 210 d. 220
12. A committee of five composed of two architects and 3 engineers is to be
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 d. 920
13. The executive board of companies is composed of 12 members. In how 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
14. Shirley has seven CDs on his desk. In how many ways can he select three
CDs?
a. 35 b. 45 c. 55 d. 65
15. Four out of seven students are needed to hand out programs at the drama
club performance. In how many ways can the four students be chosen?
a. 24 b. 27 c. 32 d. 35
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Answer:
1.b.
2.a.
3.d
4.d.
5.c.
Step-by-step explanation:
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